제출 #94583

#제출 시각아이디문제언어결과실행 시간메모리
94583FutymyCloneWalking (NOI12_walking)C++14
25 / 25
2 ms504 KiB
#include <bits/stdc++.h>

using namespace std;

const int N = 505;

int l, n, dp[N];
pair <int, int> a[N];

int main(){
    scanf("%d %d", &l, &n);
    for (int i = 1; i <= n; i++) scanf("%d %d", &a[i].first, &a[i].second);
    sort(a + 1, a + n + 1);

    for (int i = n; i >= 1; i--) {
        dp[i] = 1;
        for (int j = i + 1; j <= n; j++) {
            if (l * a[j].second + a[i].first * a[i].second * a[j].second > l * a[i].second + a[j].first * a[i].second * a[j].second) dp[i] = max(dp[i], dp[j] + 1);
        }
    }

    printf("%d", *max_element(dp + 1, dp + n + 1));
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

walking.cpp: In function 'int main()':
walking.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &l, &n);
     ~~~~~^~~~~~~~~~~~~~~~~
walking.cpp:12:39: 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 %d", &a[i].first, &a[i].second);
                                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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