public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), m = fs.NextInt(); int[] a = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt32); int[] b = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt32); int max = -1; for (int i = 0; i < n; i++) { int ind = Find(b, a[i]); int min; if (ind != -1) { min = 0; } else { int l = FindLowerBound(b, a[i]); int u = FindUpperBound(b, a[i]); min = Math.Min(l != -1 ? a[i] - b[l] : int.MaxValue, u != -1 ? b[u] - a[i] : int.MaxValue); } max = Math.Max(max, min); } writer.WriteLine(max); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { try { int F = fs.NextInt(), I = fs.NextInt(), T = fs.NextInt(); int[] likes = new int[I]; if (F <= 10 && F >= 1 && I <= 10 && I >= 1 && T <= F && T >= 1) { for (int i = 0; i < F; i++) { string str = fs.ReadLine(); if (str.Length != I) { writer.WriteLine(0); return; } for (int j = 0; j < I; j++) { if (str[j] == 'Y') { likes[j]++; } else if (str[j] != 'Y' && str[j] != 'N') { writer.WriteLine(0); return; } } } if (!String.IsNullOrEmpty(fs.ReadLine())) { writer.WriteLine(0); return; } int ans = 0; for (int i = 0; i < I; i++) { if (likes[i] >= T) { ans++; } } writer.WriteLine(ans); } else { writer.WriteLine(0); } } catch (Exception e) { writer.WriteLine(0); return; } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { string s = fs.ReadLine(); long ans = 0; for (int i = 0; i < s.Length; i++) { int d = Convert.ToInt32("" + s[i]); if (i < s.Length - 1) { int dd = Convert.ToInt32("" + s[i] + s[i + 1]); if (dd % 4 == 0) { ans += i + 1; } } if (d % 4 == 0) { ans++; } } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { string[] exp = fs.ReadLine().Split('e'); string[] num = exp[0].Split('.'); int b = int.Parse(exp[1]); StringBuilder sb = new StringBuilder(200); sb.Append(num[0]); int i = 0; for (i = 0; i < b; i++) { if (i >= num[1].Length) { sb.Append("0"); } else { sb.Append(num[1][i]); } } if (b < num[1].Length && num[1] != "0") { sb.Append("."); for (; i < num[1].Length; i++) { sb.Append(num[1][i]); } } writer.WriteLine(sb); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { bool[] met = new bool[26]; int n = fs.NextInt(); string str = fs.ReadLine(); int dup = 0, unused = 0; foreach (char c in str) { if (met[c - 'a']) { dup++; } else { met[c - 'a'] = true; } } foreach (bool b in met) { if (!b) { unused++; } } writer.WriteLine(dup > unused ? -1 : dup); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int t = fs.NextInt(); Dictionary <string, int> count = new Dictionary <string, int>(); while (t-- > 0) { string[] cmd = fs.ReadLine().Split(); if (cmd[0] == "+") { long a = Convert.ToInt64(cmd[1]); string pattern = NumToPattern(a); if (!count.ContainsKey(pattern)) { count.Add(pattern, 0); } count[pattern]++; } else if (cmd[0] == "-") { long a = Convert.ToInt64(cmd[1]); string pattern = NumToPattern(a); count[pattern]--; } else { string pattern = AppendZeros(cmd[1]); writer.WriteLine(count.ContainsKey(pattern) ? count[pattern] : 0); } } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { string str = fs.ReadLine(); List <int> list = new List <int>(str.Length); int first = -1; for (int i = 0; i < str.Length; i++) { if (str[i] == 'F') { if (first == -1 && list.Count != i) { first = list.Count; } list.Add(i); } } if (list.Count == 0 || list.Count == str.Length || first == -1) { writer.WriteLine(0); return; } int t = 0; for (int i = first + 1; i < list.Count; i++) { t = Math.Max(0, t - list[i] + list[i - 1] + 2); } writer.WriteLine(t + list.Last() - list.Count + 1); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); int[] a = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt32); SumSegmentTree seg = new SumSegmentTree(new long[n + 1]); double expDiff = 0, denom = n * 1L * (n + 1) / 2, expInvCount = 0; long inv = 0; for (int i = n - 1; i >= 0; i--) { inv += seg.QuerySum(0, a[i] - 1); expInvCount += ExpectedInverseCount(n - i); expDiff += (expInvCount - inv) / denom; seg.Update(a[i], n - i); } long initialInverseCount = 0; seg = new SumSegmentTree(new long[n + 1]); for (int i = n - 1; i >= 0; i--) { initialInverseCount += seg.QuerySum(0, a[i] - 1); seg.Update(a[i], 1); } writer.WriteLine((initialInverseCount + expDiff).ToString().Replace(",", ".")); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { n = fs.NextInt(); m = fs.NextInt(); char[,] a = new char[n, m]; int[][,] dist = new int[4][, ]; for (int i = 0; i < 4; i++) { dist[i] = new int[n, m]; } for (int i = 0; i < n; i++) { string line = fs.ReadLine(); for (int j = 0; j < m; j++) { a[i, j] = line[j]; for (int k = 0; k < 4; k++) { dist[k][i, j] = int.MaxValue; } } } int xt = fs.NextInt() - 1, yt = fs.NextInt() - 1; int xm = fs.NextInt() - 1, ym = fs.NextInt() - 1; RunBFS(a, dist, xt, yt); int ans = Math.Min(dist[0][xm, ym], Math.Min(dist[1][xm, ym], Math.Min(dist[2][xm, ym], dist[3][xm, ym]))); writer.WriteLine(ans == int.MaxValue ? -1 : ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int a = fs.NextInt(); string s1 = fs.NextToken(); string s2 = new string(fs.ReadLine().Reverse().ToArray()); long c = 0; for (int i = 0; i < s2.Length; i++) { if (s2[i] != '0') { c += (long)Math.Pow(a, i) * SingleDigitToDecimalBase(s2[i]); } } if (s1 == "R") { writer.WriteLine(ToRomanNumeral(c.ToString(), 0)); } else { int b = Convert.ToInt32(s1); writer.WriteLine(DecimalToAnyBase(c, b)); } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), p = fs.NextInt(); string[] buyers = new string[n]; for (int i = n - 1; i >= 0; i--) { buyers[i] = fs.ReadLine(); } long revenue = p / 2; double prevVal = 1; for (int i = 1; i < n; i++) { if (buyers[i] == "half") { prevVal *= 2; } else { prevVal = prevVal * 2 + 1; } revenue += (long)((prevVal / 2) * p); } writer.WriteLine(revenue); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); int[] rows = new int[n], cols = new int[n]; for (int i = 0; i < n; i++) { string s = fs.ReadLine(); for (int j = 0; j < n; j++) { if (s[j] == 'C') { rows[i]++; cols[j]++; } } } long ans = 0; for (int i = 0; i < n; i++) { ans += (rows[i] * (rows[i] - 1)) / 2; ans += (cols[i] * (cols[i] - 1)) / 2; } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), m = fs.NextInt(); Player[] p = new Player[n]; string[] ans = Enumerable.Repeat("", m).ToArray(); for (int i = 0; i < n; i++) { string[] s = fs.ReadLine().Split(); p[i] = new Player { Name = s[0], Region = Convert.ToInt32(s[1]) - 1, Score = Convert.ToInt32(s[2]) }; } p = p.OrderBy(x => x.Region).ThenByDescending(x => x.Score).ToArray(); int j = 0, lastRegion = -1; for (int i = 0; i < n; i++) { if (p[i].Region != lastRegion) { j = 0; lastRegion = p[i].Region; } if (j == 0) ans[p[i].Region] += p[i].Name + " "; else if (j == 1) ans[p[i].Region] += p[i].Name; else if (j == 2 && p[i].Score == p[i - 1].Score) ans[p[i].Region] = "?"; j++; } for (int i = 0; i < m; i++) { writer.WriteLine(ans[i]); } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); int[] male = new int[367], fem = new int[367]; for (int i = 0; i < n; i++) { string[] line = fs.ReadLine().Split(' '); if (line[0] == "M") { int l = Convert.ToInt32(line[1]), r = Convert.ToInt32(line[2]); for (int j = l; j <= r; j++) { male[j]++; } } else if (line[0] == "F") { int l = Convert.ToInt32(line[1]), r = Convert.ToInt32(line[2]); for (int j = l; j <= r; j++) { fem[j]++; } } } int ans = 0; for (int i = 1; i < 367; i++) { ans = Math.Max(ans, Math.Min(male[i], fem[i]) * 2); } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); long x = fs.NextInt(); int sad = 0; for (int i = 0; i < n; i++) { string[] line = fs.ReadLine().Split(); if (line[0] == "+") { x += Convert.ToInt32(line[1]); } else { int d = Convert.ToInt32(line[1]); if (x < d) { sad++; } else { x -= d; } } } writer.WriteLine(x + " " + sad); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), x = fs.NextInt(); int mod = (int)1e9 + 7; long[] a = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt64); long sum = a.Sum(); SortedDictionary <long, int> count = new SortedDictionary <long, int>(); for (int i = 0; i < n; i++) { long pow = sum - a[i]; if (!count.ContainsKey(pow)) { count[pow] = 0; } count[pow]++; } LinkedList <Frequency> freqs = new LinkedList <Frequency>(); foreach (var pair in count) { freqs.AddLast(new Frequency { Pow = pair.Key, Value = pair.Value }); } long minPow = 0; while (freqs.Count > 0) { var node = freqs.First; freqs.RemoveFirst(); var next = freqs.First; long pow = node.Value.Pow; int freq = node.Value.Value; if (freq % x == 0) { if (next != null && next.Value.Pow == pow + 1) { next.Value.Value += freq / x; } else { freqs.AddFirst(new Frequency { Pow = pow + 1, Value = freq / x }); } } else { minPow = pow; break; } } writer.WriteLine(BinPowMod(x, Math.Min(minPow, sum), mod)); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { string s = fs.ReadLine(); int lc = 0, rc = 0, uc = 0, dc = 0; lc = s.Where(x => x == 'L').Count(); rc = s.Where(x => x == 'R').Count(); uc = s.Where(x => x == 'U').Count(); dc = s.Where(x => x == 'D').Count(); if (s.Length % 2 == 1) { writer.WriteLine(-1); return; } int ans = 0; if ((lc + rc) % 2 == 1) { if (lc > rc) { lc--; } else { rc--; } if (uc > dc) { dc++; } else { uc++; } ans++; } if (lc > rc) { ans += (lc - rc) / 2; } else if (lc < rc) { ans += (rc - lc) / 2; } if (uc > dc) { ans += (uc - dc) / 2; } else if (uc < dc) { ans += (dc - uc) / 2; } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); string s = fs.ReadLine(); int[] count = new int[52]; int total = 0; foreach (char c in s) { if (count[Index(c)] == 0) { total++; } count[Index(c)]++; } count = new int[52]; int k = 0, ans = int.MaxValue; for (int l = 0, r = -1; l < n; l++) { if (l > r) { r = l; if (count[Index(s[l])] == 0) { k++; } count[Index(s[l])]++; } while (k < total && r < n - 1) { r++; if (count[Index(s[r])] == 0) { k++; } count[Index(s[r])]++; } if (k == total) { ans = Math.Min(ans, r - l + 1); } else { break; } if (count[Index(s[l])] == 1) { k--; } count[Index(s[l])]--; } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { string s = fs.ReadLine(), r = new string(s.Reverse().ToArray()); n = s.Length; hashS = new long[n]; hashR = new long[n]; pows = new long[n]; hashS[0] = ToLong(s[0]); hashR[0] = ToLong(r[0]); pows[0] = 1; for (int i = 1; i < n; i++) { pows[i] = pows[i - 1] * p; } for (int i = 1; i < n; i++) { hashS[i] = hashS[i - 1] + ToLong(s[i]) * pows[i]; hashR[i] = hashR[i - 1] + ToLong(r[i]) * pows[i]; } int[] dp = new int[n]; dp[0] = 1; if (n > 1) { dp[1] = s[0] == s[1] ? 2 : 0; } if (n > 2) { dp[2] = s[0] == s[2] ? 2 : 0; } for (int i = 3; i < n; i++) { int mid = i / 2; if (i % 2 == 0) { if (IsPalindrome(0, mid - 1, mid + 1, i)) { dp[i] = dp[mid - 1] + 1; } } else { if (IsPalindrome(0, mid, mid + 1, i)) { dp[i] = dp[mid] + 1; } } } writer.WriteLine(dp.Sum()); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), k = fs.NextInt(); string s = fs.ReadLine(); int max = Solve(s, n, k, 'a'); max = Math.Max(Solve(s, n, k, 'b'), max); writer.WriteLine(max); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); string str = fs.ReadLine(); bool[] isDenied = new bool[n]; int d = 0, r = 0; int dcount = str.Count(x => x == 'D'); int rcount = str.Count(x => x == 'R'); int i; for (i = 0; true; i = (i + 1) % n) { if (isDenied[i]) { continue; } if (str[i] == 'D') { if (rcount == 0) { break; } while (str[r] != 'R' || isDenied[r]) { r = (r + 1) % n; } isDenied[r] = true; rcount--; r = (r + 1) % n; d = (i + 1) % n; } else { if (dcount == 0) { break; } while (str[d] != 'D' || isDenied[d]) { d = (d + 1) % n; } isDenied[d] = true; dcount--; d = (d + 1) % n; r = (i + 1) % n; } } writer.WriteLine(str[i]); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); int[] a = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt32); int m = fs.NextInt(); Query[] queries = new Query[m]; for (int i = 0; i < m; i++) { queries[i] = new Query { Id = i, Left = fs.NextInt() - 1, Right = fs.NextInt() - 1 }; } queries = queries.OrderBy(q => q.Right).ToArray(); int[] xor = new int[n]; int[] answers = new int[m]; xor[0] = a[0]; for (int i = 1; i < n; i++) { xor[i] = xor[i - 1] ^ a[i]; } Dictionary <int, int> lastPos = new Dictionary <int, int>(); XorSegmentTreeFast distincts = new XorSegmentTreeFast(new int[n]); int r = -1; foreach (Query q in queries) { while (r < q.Right) { r++; if (lastPos.ContainsKey(a[r])) { distincts.Update(lastPos[a[r]], 0); lastPos[a[r]] = r; } else { lastPos.Add(a[r], r); } distincts.Update(r, a[r]); } answers[q.Id] = q.Left > 0 ? xor[q.Right] ^ xor[q.Left - 1] : xor[q.Right]; answers[q.Id] ^= distincts.QueryXor(q.Left, q.Right); } for (int i = 0; i < m; i++) { writer.WriteLine(answers[i]); } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); Request[] reqs = new Request[n]; for (int i = 0; i < n; i++) { reqs[i] = new Request(fs.ReadLine()); } reqs = reqs.OrderBy(r => r.Path).ToArray(); Dictionary <string, Host> hostsByName = new Dictionary <string, Host>(); Dictionary <string, LinkedList <Host> > hostsListByPaths = new Dictionary <string, LinkedList <Host> >(); for (int i = 0; i < n; i++) { if (!hostsByName.ContainsKey(reqs[i].Hostname)) { hostsByName.Add(reqs[i].Hostname, new Host(reqs[i].Hostname)); } hostsByName[reqs[i].Hostname].AddPath(reqs[i].Path); } int k = 0; foreach (KeyValuePair <string, Host> item in hostsByName) { string paths = item.Value.GetPaths(); if (!hostsListByPaths.ContainsKey(paths)) { hostsListByPaths.Add(paths, new LinkedList <Host>()); } hostsListByPaths[paths].AddLast(item.Value); if (hostsListByPaths[paths].Count == 2) { k++; } } writer.WriteLine(k); foreach (KeyValuePair <string, LinkedList <Host> > item in hostsListByPaths) { if (item.Value.Count > 1) { foreach (Host host in item.Value) { writer.Write(host.Hostname + " "); } writer.WriteLine(); } } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { _str = fs.ReadLine(); solved = new bool[2, _str.Length]; Find(_str.Length - 1, ""); writer.WriteLine(_set.Count); foreach (string suffix in _set) { writer.WriteLine(suffix); } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int[] primes = new int[] { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 4, 9, 25, 49 }; int count = 0; for (int i = 0; i < primes.Length; i++) { writer.WriteLine(primes[i]); writer.Flush(); count += fs.ReadLine() == "yes" ? 1 : 0; } writer.WriteLine(count <= 1 ? "prime" : "composite"); writer.Flush(); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), k = fs.NextInt(), totalSum = 0; string s = fs.ReadLine(); int[] sum = new int[n]; int[] sign = new int[n]; for (int i = 0; i < n; i++) { sum[i] = (s[i] - 'a') <= 12 ? 'z' - s[i] : s[i] - 'a'; sign[i] = (s[i] - 'a') <= 12 ? 1 : -1; totalSum += sum[i]; } if (totalSum < k) { writer.WriteLine(-1); } else { StringBuilder sb = new StringBuilder(); int j = 0; while (k > 0) { if (k > sum[j]) { k -= sum[j]; sb.Append((char)(s[j] + sign[j] * sum[j])); } else { sb.Append((char)(s[j] + sign[j] * k)); k = 0; } j++; } while (j < n) { sb.Append(s[j++]); } writer.WriteLine(sb.ToString()); } } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(), k = fs.NextInt(); long[] c = Array.ConvertAll(fs.ReadLine().Split(), Convert.ToInt64); bool[] isCap = new bool[n]; long sum = c.Sum(), res = 0, caps = 0; for (int i = 0; i < k; i++) { int ind = fs.NextInt() - 1; isCap[ind] = true; caps += c[ind]; } for (int i = 0; i < n; i++) { int l = i - 1, r = (i + 1) % n; if (l < 0) { l = n - 1; } if (isCap[i]) { res += c[i] * (sum - c[i]); } else { res += c[i] * caps; if (!isCap[l]) { res += c[i] * c[l]; } if (!isCap[r]) { res += c[i] * c[r]; } } } writer.WriteLine(res / 2); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); bool[] exist = new bool[7]; string[] codes = new string[n]; for (int i = 0; i < n; i++) { codes[i] = fs.ReadLine(); } for (int i = 0; i < n; i++) { for (int j = i + 1; j < n; j++) { int count = CountSameDigits(codes[i], codes[j]); if (!exist[count]) { exist[count] = true; } } } int ans = 6; if (n > 1) { if (!exist[5] && !exist[4]) { ans = 1; if (!exist[3] && !exist[2]) { ans = 2; } } else { ans = 0; } } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { map = new Dictionary <char, int>(); int val = 0; for (char c = '0'; c <= '9'; c++) { map.Add(c, val++); } for (char c = 'A'; c <= 'Z'; c++) { map.Add(c, val++); } for (char c = 'a'; c <= 'z'; c++) { map.Add(c, val++); } map.Add('-', val++); map.Add('_', val++); string s = fs.ReadLine(); long ans = 1; foreach (char c in s) { string bin = Convert.ToString(map[c], 2); for (int i = bin.Length + 1; i <= 6; i++) { ans = (ans * 3) % 1000000007; } foreach (char b in bin) { if (b == '0') { ans = (ans * 3) % 1000000007; } } } writer.WriteLine(ans); } }
public static void Run() { using (FastScanner fs = new FastScanner(new BufferedStream(Console.OpenStandardInput()))) using (StreamWriter writer = new StreamWriter(new BufferedStream(Console.OpenStandardOutput()))) { int n = fs.NextInt(); string[] a = new string[n]; for (int i = 0; i < n; i++) { a[i] = fs.ReadLine(); } Array.Sort(a, new StringComparer()); StringBuilder sb = new StringBuilder(); foreach (string str in a) { sb.Append(str); } writer.WriteLine(sb); } }