京都大学プログラミングコンテスト2015

Submission #3926012

Source codeソースコード

#include <iostream>
#include <algorithm>
#include <cstring>
#include <sstream>
#include <map>
#include <queue>
#include <vector>
using namespace std;
typedef long long int ll;
typedef pair<ll, ll> pos;
const ll MOD = 1000000007,N= 100000;

ll mn(ll a, ll b) {
	if (a == -1)return b;
	if (b == -1)return a;
	return min(a, b);
}
struct ab {
	ll a, b;
	bool operator<(const ab& right) const {
		return right.b*a - right.a*b < 0;
	}
};

ll T,n,a[30][30];

int main() {
	cin >> T;
	while (T--) {
		cin >> n;
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				cin >> a[i][j];
			}
		}
		for (int i = 0; i < n; i++) {
			if(a[i][i]!=0) {
				cout << "NO" << endl;
				goto nxt;
			}
			for (int j = 0; j < n; j++) {
				for (int k = 0; k < n; k++) {
					if (a[i][k] == -1 || a[k][j] == -1)continue;
					if (a[i][k] + a[k][j] < a[i][j]) {
						cout << "NO" << endl;
						goto nxt;
					}
					if(a[i][j]==-1) {
						cout << "NO" << endl;
						goto nxt;
					}
				}
			}
		}
		cout << "YES" << endl;
	nxt:;
	}

	return 0;
}

Submission

Task問題 C - 最短経路
User nameユーザ名 eric_endo
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 100
Source lengthソースコード長 1098 Byte
File nameファイル名
Exec time実行時間 9 ms
Memory usageメモリ使用量 256 KB

Test case

Set

Set name Score得点 / Max score Cases
All 100 / 100 00_sample.txt,10_random_00.txt,10_random_01.txt,10_random_02.txt,10_random_03.txt,10_random_04.txt,10_random_05.txt,10_random_06.txt,10_random_07.txt,10_random_08.txt,10_random_09.txt,10_random_10.txt,10_random_11.txt,10_random_12.txt,10_random_13.txt,10_random_14.txt,10_random_15.txt,10_random_16.txt,10_random_17.txt,10_random_18.txt,10_random_19.txt,10_random_20.txt,10_random_21.txt,10_random_22.txt,10_random_23.txt,10_random_24.txt,10_random_25.txt,10_random_26.txt,10_random_27.txt,10_random_28.txt,10_random_29.txt,22_random_30.txt,22_random_31.txt,23_coplete_32.txt,23_coplete_33.txt,24_path_34.txt,24_path_35.txt,25_tree_36.txt,25_tree_37.txt,26_noedge_38.txt,27_dot_39.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_sample.txt AC 1 ms 256 KB
10_random_00.txt AC 7 ms 256 KB
10_random_01.txt AC 7 ms 256 KB
10_random_02.txt AC 7 ms 256 KB
10_random_03.txt AC 7 ms 256 KB
10_random_04.txt AC 7 ms 256 KB
10_random_05.txt AC 7 ms 256 KB
10_random_06.txt AC 7 ms 256 KB
10_random_07.txt AC 7 ms 256 KB
10_random_08.txt AC 7 ms 256 KB
10_random_09.txt AC 7 ms 256 KB
10_random_10.txt AC 7 ms 256 KB
10_random_11.txt AC 7 ms 256 KB
10_random_12.txt AC 7 ms 256 KB
10_random_13.txt AC 7 ms 256 KB
10_random_14.txt AC 7 ms 256 KB
10_random_15.txt AC 7 ms 256 KB
10_random_16.txt AC 7 ms 256 KB
10_random_17.txt AC 7 ms 256 KB
10_random_18.txt AC 7 ms 256 KB
10_random_19.txt AC 7 ms 256 KB
10_random_20.txt AC 7 ms 256 KB
10_random_21.txt AC 7 ms 256 KB
10_random_22.txt AC 7 ms 256 KB
10_random_23.txt AC 7 ms 256 KB
10_random_24.txt AC 7 ms 256 KB
10_random_25.txt AC 7 ms 256 KB
10_random_26.txt AC 7 ms 256 KB
10_random_27.txt AC 7 ms 256 KB
10_random_28.txt AC 7 ms 256 KB
10_random_29.txt AC 7 ms 256 KB
22_random_30.txt AC 7 ms 256 KB
22_random_31.txt AC 7 ms 256 KB
23_coplete_32.txt AC 9 ms 256 KB
23_coplete_33.txt AC 9 ms 256 KB
24_path_34.txt AC 8 ms 256 KB
24_path_35.txt AC 8 ms 256 KB
25_tree_36.txt AC 8 ms 256 KB
25_tree_37.txt AC 7 ms 256 KB
26_noedge_38.txt AC 7 ms 256 KB
27_dot_39.txt AC 1 ms 256 KB