Submission #101441

#	Time	Username	Problem	Language	Result	Execution time	Memory
101441		shenxy	Adriatic (CEOI13_adriatic)	C++11	25 / 100	2087 ms	256652 KiB

adriatic

#include <cstdio>
#include <algorithm>
using namespace std;
int main() {
    int N;
    scanf("%d", &N);
    int R[N], C[N];
    int adjmat[N][N];
    for (int i = 0; i < N; i++) {
        scanf("%d %d", &R[i], &C[i]);
    }
    for (int i = 0; i < N; i++) {
        for (int j = i; j < N; j++) {
            if (i == j) adjmat[i][j] = adjmat[j][i] = 0;
            else if ((R[i] < R[j] && C[i] < C[j]) || (R[i] > R[j] && C[i] > C[j])) adjmat[i][j] = adjmat[j][i] = 1;
            else adjmat[i][j] = adjmat[j][i] = 1000000;
        }
    }
    for (int k = 0; k < N; k++) {
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < N; j++) {
                adjmat[i][j] = min(adjmat[i][j], adjmat[i][k] + adjmat[k][j]);
            }
        }
    }
    for (int i = 0; i < N; i++) {
        int ans = 0;
        for (int j = 0; j < N; j++) {
            ans += adjmat[i][j];
        }
        printf("%d\n", ans);
    }
    return 0;
}

Compilation message (stderr)

adriatic.cpp: In function 'int main()':
adriatic.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
adriatic.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &R[i], &C[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20