用户输出
26
系统信息
Exited with return code 0| 编号 | 题目 | 状态 | 分数 | 总时间 | 内存 | 代码 / 答案文件 | 提交者 | 提交时间 |
|---|---|---|---|---|---|---|---|---|
| #84450 | #1388. 莉可莉丝 | Accepted | 100 | 2719 ms | 70596 K | C++ 17 / 1.7 K | Rhodoks | 2023-05-06 17:58:28 |
/*====Corycle====*/
#include <bits/stdc++.h>
#define ll long long
#define mp make_pair
#define fst first
#define scd second
#define pii pair<int, int>
using namespace std;
const ll INF = 1e18;
const int inf = 0x3f3f3f3f;
const int N = 3005;
const int M = 20005;
int read() {
int s = 0, f = 1;
char c = getchar();
while (c < '0' || c > '9') {
if (c == '-')
f = -1;
c = getchar();
}
while (c >= '0' && c <= '9') {
s = s * 10 + c - '0';
c = getchar();
}
return s * f;
}
int n, m, cnt;
int h[N], deg[N];
ll dis[N][N][2];
struct edge {
int to, next, dist;
} d[M];
void Add(int x, int y, int z) {
d[++cnt] = (edge){ y, h[x], z };
h[x] = cnt;
}
void Solve(int s, ll dist[][2]) {
for (int x = 1; x <= n; x++) {
for (int i = h[x]; i; i = d[i].next) deg[d[i].to]++;
dist[x][0] = dist[x][1] = INF;
}
queue<int> q;
for (int i = 1; i <= n; i++)
if (!deg[i])
q.push(i);
dist[s][0] = 0;
while (!q.empty()) {
int x = q.front();
q.pop();
for (int i = h[x]; i; i = d[i].next) {
int y = d[i].to;
ll w = dist[x][0] + d[i].dist;
if (dist[y][0] > w) {
dist[y][1] = dist[y][0];
dist[y][0] = w;
} else
dist[y][1] = min(dist[y][1], w);
if (!(--deg[y]))
q.push(y);
}
}
}
int main() {
// freopen("graph.in","r",stdin);
// freopen("graph.out","w",stdout);
// double S=clock();
n = read();
m = read();
for (int i = 1; i <= m; i++) {
int x = read(), y = read();
Add(x, y, read());
}
for (int i = 1; i <= n; i++) Solve(i, dis[i]);
ll ans = INF;
for (int x = 1; x <= n; x++) {
for (int y = 1; y <= n; y++) {
ans = min(ans, dis[1][x][0] + dis[x][y][0] + dis[x][y][1] + dis[y][n][0]);
}
}
printf("%lld\n", ans);
// cerr<<clock()-S<<endl;
return 0;
}
用户输出
8
系统信息
Exited with return code 0用户输出
8
系统信息
Exited with return code 050 100
1 2 331
2 3 423
3 4 831
3 5 196
2 6 467
4 7 841
5 8 589
6 9 930
9 10 481
3 11 293
7 12 968
5
<852 bytes omitted>用户输出
4204
系统信息
Exited with return code 050 100
1 2 37
2 3 90
3 4 270
1 5 616
4 6 462
6 7 801
5 8 922
8 9 701
5 10 204
7 11 330
1 12 588
6 13
<840 bytes omitted>用户输出
1685
系统信息
Exited with return code 0942 9498
1 2 87293
1 3 92214
3 4 20834
3 5 924
4 6 71171
6 7 66669
6 8 57264
6 9 98803
5 10 52661
7
<129920 bytes omitted>用户输出
214920
系统信息
Exited with return code 0954 9620
1 2 48928
1 3 77602
2 4 9736
2 5 82149
1 6 14100
2 7 73201
7 8 31260
7 9 82801
2 10 69933
6
<131587 bytes omitted>用户输出
184919
系统信息
Exited with return code 0946 9136
1 2 3322
1 3 76072
1 4 16527
2 5 9562
5 6 60762
6 7 67224
1 8 88909
7 9 91358
9 10 25363
4
<124859 bytes omitted>用户输出
191259
系统信息
Exited with return code 0963 9814
1 2 14048
2 3 40980
2 4 76354
1 5 32242
5 6 57710
4 7 74690
3 8 696
2 9 93547
5 10 83686
3
<134310 bytes omitted>用户输出
191404
系统信息
Exited with return code 0907 9592
1 2 56498
2 3 39992
1 4 97777
3 5 43535
1 6 60669
3 7 8684
6 8 8342
5 9 3341
5 10 54069
3 1
<131170 bytes omitted>用户输出
159164
系统信息
Exited with return code 0961 9738
1 2 77603
1 3 55107
2 4 94838
1 5 86873
2 6 71895
4 7 42417
7 8 18633
3 9 50720
2 10 8124
2
<133328 bytes omitted>用户输出
226759
系统信息
Exited with return code 0922 9495
1 2 74386
1 3 46842
1 4 45986
3 5 28221
4 6 813
6 7 9673
5 8 84925
5 9 27070
1 10 28158
6 1
<129894 bytes omitted>用户输出
206120
系统信息
Exited with return code 0969 9940
1 2 52898
2 3 66949
1 4 33891
1 5 89883
3 6 58933
1 7 43115
6 8 705
1 9 11964
2 10 27082
7
<136015 bytes omitted>用户输出
180825
系统信息
Exited with return code 0958 9208
1 2 6355
1 3 33442
3 4 5708
1 5 82239
5 6 54649
4 7 90055
1 8 96152
8 9 66805
3 10 2693
9 1
<125934 bytes omitted>用户输出
201075
系统信息
Exited with return code 01978 9706
1 2 78441
1 3 93204
1 4 34169
4 5 68390
4 6 68610
2 7 4971
2 8 48605
8 9 41970
4 10 67572
<143038 bytes omitted>用户输出
235715
系统信息
Exited with return code 01988 9915
1 2 18876
2 3 50319
2 4 23783
3 5 12278
5 6 52624
2 7 94109
6 8 45323
7 9 85178
3 10 40196
<146223 bytes omitted>用户输出
180635
系统信息
Exited with return code 01992 9832
1 2 8550
2 3 74022
2 4 32107
2 5 35012
1 6 63629
4 7 68299
4 8 32176
2 9 52376
7 10 37712
<145210 bytes omitted>用户输出
400566
系统信息
Exited with return code 01904 9599
1 2 38275
1 3 8569
2 4 22406
4 5 52940
5 6 90205
4 7 65298
7 8 98943
5 9 69325
6 10 47027
<141327 bytes omitted>用户输出
553323
系统信息
Exited with return code 01966 9554
1 2 17891
2 3 8060
3 4 6259
1 5 33026
5 6 71923
6 7 60286
6 8 54211
4 9 29160
9 10 31533
4
<141078 bytes omitted>用户输出
893510
系统信息
Exited with return code 0