#include <bits/stdc++.h>
#define int ll
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,x,n) for(int i=x;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3wByxeT ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e
signed main(){
_3wByxeT;
int n,m;
cin>>n>>m;
const int inf=1e10+11;
vec(vi) tbl(n,vi(n,inf));
rep(i,m){
int u,v,w;
cin>>u>>v>>w;
u-=1,v-=1;
tbl[u][v]=min(tbl[u][v],w);
}
auto faf=[&](int v)->vec(vi){
vec(vi) dp(n,vi(n+1,inf));
dp[v][0]=0;
rep(j,n){
rep(i,n){
rep(k,n){
if(tbl[i][k]==inf) continue;
dp[k][j+1]=min(dp[k][j+1],dp[i][j]+tbl[i][k]);
}
}
}
return dp;
};
vec(vec(vi)) qols;
rep(i,n){
qols.pb(faf(i));
}
int k,q;
cin>>k>>q;
k=min(k,n);
rep(i,q){
int v,u;
cin>>v>>u;
v-=1,u-=1;
int res=inf;
rep(j,k+1){
res=min(res,qols[v][u][j]);
}
print((res>=inf?-1:res));
}
//
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
244 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
46 ms |
3224 KB |
Output is correct |
2 |
Correct |
45 ms |
3276 KB |
Output is correct |
3 |
Correct |
43 ms |
3228 KB |
Output is correct |
4 |
Correct |
63 ms |
3228 KB |
Output is correct |
5 |
Correct |
67 ms |
3188 KB |
Output is correct |
6 |
Correct |
80 ms |
3204 KB |
Output is correct |
7 |
Correct |
80 ms |
3216 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
244 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
43 ms |
3188 KB |
Output is correct |
8 |
Correct |
47 ms |
3236 KB |
Output is correct |
9 |
Correct |
65 ms |
3272 KB |
Output is correct |
10 |
Correct |
63 ms |
3220 KB |
Output is correct |
11 |
Correct |
80 ms |
3272 KB |
Output is correct |
12 |
Correct |
80 ms |
3340 KB |
Output is correct |
13 |
Correct |
158 ms |
3444 KB |
Output is correct |
14 |
Correct |
162 ms |
3420 KB |
Output is correct |
15 |
Correct |
160 ms |
3488 KB |
Output is correct |
16 |
Correct |
175 ms |
3488 KB |
Output is correct |
17 |
Correct |
165 ms |
3404 KB |
Output is correct |
18 |
Correct |
159 ms |
3456 KB |
Output is correct |
19 |
Correct |
157 ms |
3440 KB |
Output is correct |
20 |
Correct |
169 ms |
3416 KB |
Output is correct |
21 |
Correct |
161 ms |
3500 KB |
Output is correct |
22 |
Correct |
164 ms |
3408 KB |
Output is correct |
23 |
Correct |
160 ms |
3536 KB |
Output is correct |
24 |
Correct |
167 ms |
3428 KB |
Output is correct |
25 |
Correct |
163 ms |
3408 KB |
Output is correct |
26 |
Correct |
163 ms |
3396 KB |
Output is correct |
27 |
Correct |
161 ms |
3412 KB |
Output is correct |
28 |
Correct |
163 ms |
3448 KB |
Output is correct |
29 |
Correct |
156 ms |
3404 KB |
Output is correct |
30 |
Correct |
163 ms |
3552 KB |
Output is correct |
31 |
Correct |
159 ms |
3412 KB |
Output is correct |
32 |
Correct |
171 ms |
3408 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
244 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
46 ms |
3224 KB |
Output is correct |
8 |
Correct |
45 ms |
3276 KB |
Output is correct |
9 |
Correct |
43 ms |
3228 KB |
Output is correct |
10 |
Correct |
63 ms |
3228 KB |
Output is correct |
11 |
Correct |
67 ms |
3188 KB |
Output is correct |
12 |
Correct |
80 ms |
3204 KB |
Output is correct |
13 |
Correct |
80 ms |
3216 KB |
Output is correct |
14 |
Correct |
43 ms |
3188 KB |
Output is correct |
15 |
Correct |
47 ms |
3236 KB |
Output is correct |
16 |
Correct |
65 ms |
3272 KB |
Output is correct |
17 |
Correct |
63 ms |
3220 KB |
Output is correct |
18 |
Correct |
80 ms |
3272 KB |
Output is correct |
19 |
Correct |
80 ms |
3340 KB |
Output is correct |
20 |
Correct |
158 ms |
3444 KB |
Output is correct |
21 |
Correct |
162 ms |
3420 KB |
Output is correct |
22 |
Correct |
160 ms |
3488 KB |
Output is correct |
23 |
Correct |
175 ms |
3488 KB |
Output is correct |
24 |
Correct |
165 ms |
3404 KB |
Output is correct |
25 |
Correct |
159 ms |
3456 KB |
Output is correct |
26 |
Correct |
157 ms |
3440 KB |
Output is correct |
27 |
Correct |
169 ms |
3416 KB |
Output is correct |
28 |
Correct |
161 ms |
3500 KB |
Output is correct |
29 |
Correct |
164 ms |
3408 KB |
Output is correct |
30 |
Correct |
160 ms |
3536 KB |
Output is correct |
31 |
Correct |
167 ms |
3428 KB |
Output is correct |
32 |
Correct |
163 ms |
3408 KB |
Output is correct |
33 |
Correct |
163 ms |
3396 KB |
Output is correct |
34 |
Correct |
161 ms |
3412 KB |
Output is correct |
35 |
Correct |
163 ms |
3448 KB |
Output is correct |
36 |
Correct |
156 ms |
3404 KB |
Output is correct |
37 |
Correct |
163 ms |
3552 KB |
Output is correct |
38 |
Correct |
159 ms |
3412 KB |
Output is correct |
39 |
Correct |
171 ms |
3408 KB |
Output is correct |
40 |
Correct |
42 ms |
3280 KB |
Output is correct |
41 |
Correct |
44 ms |
3276 KB |
Output is correct |
42 |
Correct |
66 ms |
3304 KB |
Output is correct |
43 |
Correct |
64 ms |
3276 KB |
Output is correct |
44 |
Correct |
80 ms |
3296 KB |
Output is correct |
45 |
Correct |
81 ms |
3288 KB |
Output is correct |
46 |
Correct |
166 ms |
9408 KB |
Output is correct |
47 |
Correct |
175 ms |
9324 KB |
Output is correct |
48 |
Correct |
184 ms |
9456 KB |
Output is correct |
49 |
Correct |
164 ms |
9292 KB |
Output is correct |
50 |
Correct |
175 ms |
9416 KB |
Output is correct |
51 |
Correct |
161 ms |
9428 KB |
Output is correct |
52 |
Correct |
164 ms |
9452 KB |
Output is correct |
53 |
Correct |
168 ms |
9424 KB |
Output is correct |
54 |
Correct |
176 ms |
9492 KB |
Output is correct |
55 |
Correct |
164 ms |
9420 KB |
Output is correct |
56 |
Correct |
165 ms |
9500 KB |
Output is correct |
57 |
Correct |
172 ms |
9424 KB |
Output is correct |
58 |
Correct |
171 ms |
9548 KB |
Output is correct |
59 |
Correct |
167 ms |
9556 KB |
Output is correct |
60 |
Correct |
171 ms |
9560 KB |
Output is correct |
61 |
Correct |
170 ms |
9496 KB |
Output is correct |
62 |
Correct |
179 ms |
9300 KB |
Output is correct |
63 |
Correct |
160 ms |
9296 KB |
Output is correct |
64 |
Correct |
164 ms |
9292 KB |
Output is correct |
65 |
Correct |
162 ms |
9328 KB |
Output is correct |