提出 #73713987

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ソースコード 拡げる

#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;

  stack<int> a_pos;
  stack<int> b_pos;
  stack<int> c_pos;
  for (int i = 0;i < s.size();i++) {
    if (s[i] == 'A')a_pos.push(i);
    if (s[i] == 'B')b_pos.push(i);
    if (s[i] == 'C')c_pos.push(i);
  }

  int ans = 0;

  while (c_pos.size()) {
    int current_c_pos = c_pos.top();
    c_pos.pop();
    bool ok = false;
    while (b_pos.size()) {
      int current_b_pos = b_pos.top();
      b_pos.pop();
      if (current_b_pos > current_c_pos)continue;
      while (a_pos.size()) {
        int current_a_pos = a_pos.top();
        a_pos.pop();
        // printf("a:%d, b:%d, c:%d\n", current_a_pos, current_b_pos, current_c_pos);
        if (current_b_pos > current_a_pos) {
          ok = true;
          break;
        }
      }

      if(ok)break;
    }

    if (ok)ans++;
  }

  cout << ans << endl;
}

提出情報

コンパイルエラー

./Main.cpp: In function 'int main()':
./Main.cpp:10:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |   for (int i = 0;i < s.size();i++) {
      |                  ~~^~~~~~~~~~

ジャッジ結果