Submission #17169425

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Source Code Expand

#include <bits/stdc++.h>

const int N = 5e3;

int n, cntA[N + 5], cntT[N + 5], cntC[N + 5], cntG[N + 5];
char str[N + 5];

int main() {
	scanf("%d %s", &n, str + 1);
	for (int i = 1; i <= n; i++) {
		char x = str[i];
		cntA[i] = cntA[i - 1];
		cntT[i] = cntT[i - 1];
		cntC[i] = cntC[i - 1];
		cntG[i] = cntG[i - 1];
		if (x == 'A') cntA[i]++;
		if (x == 'T') cntT[i]++;
		if (x == 'C') cntC[i]++;
		if (x == 'G') cntG[i]++;
	}
	int ans = 0;
	for (int i = 1; i <= n; i++) {
		for (int j = i; j <= n; j++) {
			ans += (cntA[j] - cntA[i - 1] == cntT[j] - cntT[i - 1] && cntC[j] - cntC[i - 1] == cntG[j] - cntG[i - 1]);
		}
	}
	printf("%d\n", ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:9:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
    9 |  scanf("%d %s", &n, str + 1);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Judge Result