ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#214513 | #2709. Maximum Weight | White_Wat | 100 | 2520ms | 3596kb | C++11 | 972b | 2024-11-19 19:36:56 | 2024-11-19 23:00:40 |
answer
#include<bits/stdc++.h>
using namespace std;
const int N = 1e5+5;
typedef long long ll;
int T;
int n,m;
struct G{int u,v,w;}g[N];
int f[N],siz[N];
int find(int x){return f[x]==x?x:f[x]=find(f[x]);}
int _,h[N];
//struct E{int to,nex,w;}e[N<<1];
//void add(int u,int v,int w){e[++_].nex=h[u],h[u]=_,e[_].to=v,e[_].w=w;}
ll ans;
void init(){
for(int i=1;i<=n;i++) f[i]=i,h[i]=0,siz[i]=1;
_=0,ans=0;
}
void Kruskal(){
sort(g+1,g+1+m,[&](const G &x,const G &y){return x.w<y.w;});
for(int i=1;i<=m;i++){
int u=g[i].u,v=g[i].v,w=g[i].w;
int fu=find(u),fv=find(v);
if(fu==fv) continue;
ans=ans+1ll*w*siz[fu]*siz[fv];
f[fu]=fv;
siz[fv]+=siz[fu];
// add(u,v,w),add(v,u,w);
}
}
int main(){
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
cin>>T;
while(T--){
cin>>n>>m;
init();
for(int i=1;i<=m;i++){
int u,v,w;cin>>u>>v>>w;
g[i]={u,v,w};
}
Kruskal();
cout<<ans<<'\n';
}
return 0;
}
Details
小提示:点击横条可展开更详细的信息
Test #1:
score: 5
Accepted
time: 0ms
memory: 1288kb
input:
5 200 200 87 21 609 97 9 566 169 28 893 181 137 280 139 67 622 78 186 503 104 59 24 58 7 460 2 5 972...
output:
16352732 16336938 18311542 17074338 17304585
result:
ok 5 lines
Test #2:
score: 5
Accepted
time: 0ms
memory: 1284kb
input:
5 200 200 138 19 453 178 159 227 89 99 937 38 60 806 145 45 448 169 146 982 180 153 382 73 167 608 1...
output:
17101828 17550376 16746021 17786837 16222316
result:
ok 5 lines
Test #3:
score: 5
Accepted
time: 0ms
memory: 1284kb
input:
5 200 200 140 37 428 167 191 722 18 70 854 12 63 869 40 107 253 146 21 701 198 126 594 55 183 67 2 4...
output:
16466132 16907763 17447896 17281330 17606236
result:
ok 5 lines
Test #4:
score: 5
Accepted
time: 0ms
memory: 1284kb
input:
5 200 200 187 173 189 59 103 160 12 143 13 16 115 179 130 108 854 7 39 124 164 72 407 66 200 625 105...
output:
16551712 17073788 18382571 16125810 17394218
result:
ok 5 lines
Test #5:
score: 5
Accepted
time: 0ms
memory: 1284kb
input:
5 200 200 29 8 307 152 26 149 114 137 559 9 146 81 179 5 203 3 150 8 26 81 660 82 69 356 60 51 591 1...
output:
17720164 16949531 17616778 17620129 16288612
result:
ok 5 lines
Test #6:
score: 5
Accepted
time: 0ms
memory: 1288kb
input:
5 200 200 35 144 182 145 194 241 163 140 918 102 193 228 167 130 338 40 65 646 22 1 238 131 120 122 ...
output:
17829792 17475817 17019069 17199330 17653988
result:
ok 5 lines
Test #7:
score: 5
Accepted
time: 266ms
memory: 3444kb
input:
5 53735 100000 39892 35843 390 26908 36823 655 6371 23805 896 22798 20233 34 26039 37466 620 22807 2...
output:
732544305334 2754865428244 382579317384 1280102815136 1229031627679
result:
ok 5 lines
Test #8:
score: 5
Accepted
time: 157ms
memory: 3324kb
input:
5 10229 100000 7299 6840 113 6306 8765 160 5192 8138 791 6357 5200 186 9344 6620 230 2728 5157 294 1...
output:
5404797207 20352728657 353943098727 1937353835830 21748452142
result:
ok 5 lines
Test #9:
score: 5
Accepted
time: 154ms
memory: 3508kb
input:
5 57846 100000 40438 9781 106 35677 46516 444 39104 10920 598 14172 5965 925 10993 42212 964 34922 5...
output:
904138784672 1229908083183 3312833162570 13466143626 117116026446
result:
ok 5 lines
Test #10:
score: 5
Accepted
time: 142ms
memory: 3420kb
input:
5 83866 100000 54676 45243 758 42970 31099 721 27422 62458 4 64200 18592 974 7505 20672 900 83354 49...
output:
2595447490609 123598549967 873449242705 163261591501 6530129535
result:
ok 5 lines
Test #11:
score: 5
Accepted
time: 141ms
memory: 3352kb
input:
5 10818 100000 6480 6451 261 10486 2548 495 8142 9400 330 4568 1781 682 8289 5945 660 1058 5902 378 ...
output:
6395040382 453510144589 1146821490214 1989455054879 2131608702734
result:
ok 5 lines
Test #12:
score: 5
Accepted
time: 142ms
memory: 3524kb
input:
5 28267 100000 6205 10002 70 12719 28165 6 6174 15544 940 3052 1398 62 648 16984 103 17068 3616 397 ...
output:
112235086092 704232646899 3480141264037 5409166707 847127748242
result:
ok 5 lines
Test #13:
score: 5
Accepted
time: 157ms
memory: 3464kb
input:
5 33283 100000 134 21400 430 22159 6741 87 2473 18253 422 13630 28077 144 22002 24779 437 13034 2417...
output:
181764918984 10494375881 2904692922887 2873734401778 1952601398766
result:
ok 5 lines
Test #14:
score: 5
Accepted
time: 133ms
memory: 3548kb
input:
5 95017 100000 37418 35411 167 6415 94231 616 3744 60077 591 73070 5537 37 50016 18446 825 55281 519...
output:
3761434512069 493802436522 3118031756937 254959337484 400341250283
result:
ok 5 lines
Test #15:
score: 5
Accepted
time: 184ms
memory: 3164kb
input:
5 35374 100000 7390 8869 566 34086 23636 990 32887 4674 494 6452 18007 424 12723 34687 25 11020 3193...
output:
217535971486 821519157137 1089950355527 203558732186 222284648865
result:
ok 5 lines
Test #16:
score: 5
Accepted
time: 255ms
memory: 3596kb
input:
5 99901 100000 35090 96613 813 67573 26667 941 3022 45474 629 10290 52654 196 12701 59286 893 80077 ...
output:
4639212192506 4527502650380 2646373298968 861236891829 1047783342082
result:
ok 5 lines
Test #17:
score: 5
Accepted
time: 248ms
memory: 3304kb
input:
5 60029 100000 51021 51437 658 17839 25439 501 51521 1893 516 20462 309 128 58519 8607 623 34157 498...
output:
1003441431151 1691484443966 1791163494281 18745776112 210354312422
result:
ok 5 lines
Test #18:
score: 5
Accepted
time: 228ms
memory: 3596kb
input:
5 25779 100000 2274 4201 54 11775 9137 148 697 21064 449 14126 25608 840 5579 19585 779 9641 15433 5...
output:
85132266903 182947677225 1097763476065 2659255065879 4423639006491
result:
ok 5 lines
Test #19:
score: 5
Accepted
time: 164ms
memory: 3552kb
input:
5 33220 100000 31269 1383 683 18955 25297 299 700 12197 974 27221 20329 796 29285 29654 414 21164 21...
output:
179906133251 3317919286134 3795092286748 3405456936976 1387185986674
result:
ok 5 lines
Test #20:
score: 5
Accepted
time: 149ms
memory: 3108kb
input:
5 17719 100000 11733 10279 4 15938 11631 578 9235 13763 91 13846 2450 912 12426 13022 236 13098 1628...
output:
27833343898 888210439717 13546738134 16496672955 438926144015
result:
ok 5 lines