提出 #3842331

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ソースコード 拡げる

#include <cstdio>
#include <algorithm>

const int MAXN = 100005;

int a[MAXN];

int main() {
    int n;
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
    std::sort(a, a + n);

    int sg = 0;
    for (int i = 1; i <= n; i++) if ((a[i] - a[i - 1]) % 2) {
        sg ^= n - i + 1;
    }

    puts(sg ? "first" : "second");
    
    return 0;
}

提出情報

コンパイルエラー

./Main.cpp: In function ‘int main()’:
./Main.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
                    ^
./Main.cpp:11:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
                                                    ^

ジャッジ結果