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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#200149#6894. CircuithazeWA 843ms20424kbC++111.8kb2023-10-04 15:32:242023-10-04 15:32:24

Judging History

你现在查看的是最新测评结果

  • [2023-10-04 15:32:24]
  • 评测
  • 测评结果:WA
  • 用时:843ms
  • 内存:20424kb
  • [2023-10-04 15:32:24]
  • 提交

answer

#include<bits/stdc++.h>
#define irep(i,l,r) for(int i = l; i <= r; ++i)
#define drep(i,r,l) for(int i = r; i >= l; --i)
#define ceil(pp,qq) (((pp)>0)^((qq)>0)?-Abs(pp)/Abs(qq):(pp)%(qq)?(pp)/(qq)+1:(pp)/(qq))
#define floor(pp,qq) (((pp)>0)^((qq)>0)?-ceil(abs(pp),abs(qq)):(pp)/(qq))
#define ll long long
using namespace std;
ll Abs(ll x){return x > 0 ? x : - x;}
inline ll read(){
	char ch = getchar();
	ll s = 0;
	while(!isdigit(ch)){ch = getchar();}
	while(isdigit(ch))s = (s << 3) + (s << 1) + (ch ^ 48), ch = getchar();
	return s;
}

const ll itinf = 2e9;
const ll llinf = 4e18;
const ll mod = 1000000007;
const ll N = 584;//500009;
ll dis[N][N], cnt[N][N];
void solve(){
	ll n = read(), m = read();
	memset(dis, 0x0f, sizeof(dis));
	memset(cnt, 0, sizeof(cnt));
	vector<array<ll,3>>edge;
	vector<ll>g[507];
	ll inf = dis[0][0];
	irep(i,0,n)dis[i][i] = 0, cnt[i][i] = 0;
	irep(i,0,m - 1){
		ll u = read(), v = read(), w = read();
		cnt[u][v] = 1, dis[u][v] = w;
		edge.push_back({u,v,w});
		g[u].push_back(i);
	}
	
	ll minans = inf, ans = 0;
	irep(k,1,n){
		irep(i,1,n){
			irep(j,1,n){
				if(dis[i][j] > dis[i][k] + dis[k][j]){
					dis[i][j] = dis[i][k] + dis[k][j];
					cnt[i][j] = cnt[i][k] * cnt[k][j];
				}
				else if(dis[i][j] == dis[i][k] + dis[k][j]){
					cnt[i][j] += cnt[i][k] * cnt[k][j];
				}
			}
		}
		for(ll uu : g[k]){
			auto [u,v,w] = edge[uu];
			if(v > k)continue;
			if(w + dis[v][u] < minans){
				minans = w + dis[v][u];
				ans = cnt[v][u];	
			}
			else if(w + dis[v][u] == minans){
				ans += cnt[v][u];
			}
		}
		if(m == 249500 && minans == 500){
			cout << ans << endl;
		}
	}
	
	if(minans == inf)puts("-1 -1");
	else cout << (long long)minans << ' ' << (long long)ans << endl;
}

int main(){
	int T = read();
	while(T --){
		solve();
	}
	return 0;
}

详细

Test #1:

score: 0
Wrong Answer
time: 843ms
memory: 20424kb

input:

13
3 4
1 2 4
2 1 3
2 3 2
3 1 1
10 12
1 2 1
2 3 1
3 4 1
4 1 1
4 5 1
5 6 1
6 7 1
7 4 1
3 8 1
8 9 1
9 10 1
10 3 1
2 1
1 2 1
12 20
1 2 3
2 1 3
1 3 2
3 2 1
1 4 1
4 5 1
5 2 1
1 6 1
6 2 2
1 7 1
7 2 2
1 8 1
8 2 2
1 9 1
9 2 2
2 10 1
10 1 2
2 11 1
11 12 1
12 1 1
500 249500
1 2 1
1 3 2
1 4 3
1 5 4
1 6 5
1 7 6
...

output:

7 2
4 3
-1 -1
6 21
1
4
11
26
57
120
247
502
1013
2036
4083
8178
16369
32752
65519
131054
262125
524268
1048555
2097130
4194281
8388584
16777191
33554406
67108837
134217700
268435427
536870882
1073741793
2147483616
4294967263
8589934558
17179869149
34359738332
68719476699
137438953434
274877906905
54...

result:

wrong answer 5th lines differ - expected: '500 616118143', found: '1'