提出 #38453588

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ソースコード 拡げる

#include <bits/stdc++.h>

using namespace std;

int t;
long long n, k;;
char x[200005];

int main() {
	scanf("%d", &t);
	for (int tt = 1; tt <= t; tt++) {
		scanf("%lld%lld%s", &n, &k, x);
		bool ok = 1;
		for (int i = 0; i < min(n * 2, n + k); i++) {
			char ta = i < n ? x[i] : x[n - 1 - (i - n)];
			int tmp = (n + k - 1 - i) % (n * 2);
			char tb = tmp < n ? x[tmp] : x[n - 1 - (tmp - n)];
			if (ta != tb) {
				ok = 0;
				break;
			}
		}
		puts(ok ? "Yes" : "No");
	}
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   10 |  scanf("%d", &t);
      |  ~~~~~^~~~~~~~~~
./Main.cpp:12:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   12 |   scanf("%lld%lld%s", &n, &k, x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

ジャッジ結果