提出 #70617480

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ソースコード 拡げる

#include<iostream>
#include<vector>
#include<algorithm>
#include<map>
#include<unordered_map>
#include<unordered_set>
#include<deque>
#include<string>
#include<cmath>
#include<set>
#include<queue>

using namespace std;

int n, a, b;
string s;
vector<int> psumA, psumB;

int get_a(int l, int r) {
	return psumA[r + 1] - psumA[l];
}

int get_b(int l, int r) {
	return psumB[r + 1] - psumB[l];
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> n >> a >> b;
	cin >> s;
	psumA.resize(n + 1);
	psumB.resize(n + 1);
	for (int i = 0; i < s.size(); i++) {
		if (s[i] == 'a') {
			psumA[i + 1] = psumA[i] + 1;
			psumB[i + 1] = psumB[i];
		}
		else {
			psumA[i + 1] = psumA[i];
			psumB[i + 1] = psumB[i] + 1;
		}
	}

	long long ret = 0;
	int l = 0;
	int l2 = 0;

	for (int r = 0; r < n ; r++) {
		while (l < r && get_b(l, r) >= b) {
			l++;
		}
		if (l2 < l) l2 = l;

		while (l2 <= r && get_a(l2, r) >= a) {
			l2++;
		}
		if (get_a(l, r) >= a) {
			ret += l2 - l;
		}
	}

	cout << ret;
}

提出情報

コンパイルエラー

./Main.cpp: In function 'int main()':
./Main.cpp:34:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for (int i = 0; i < s.size(); i++) {
      |                         ~~^~~~~~~~~~

ジャッジ結果