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 |
---|---|---|---|---|---|---|---|---|---|
#213091 | #2675. Road Reform | X_X | 100 | 778ms | 4336kb | C++ | 881b | 2024-11-09 19:49:42 | 2024-11-09 23:08:54 |
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
const int N=2e5+3;
int n,m,k,f[N],ans=2e9,cnt;
LL sum;
bool flag;
struct node{
int x,y,z;
}a[N];
bool cmp(node X,node Y){
return X.z<Y.z;
}
int find(int x){
return f[x]==x?x:f[x]=find(f[x]);
}
int Main()
{
scanf("%d%d%d",&n,&m,&k);
for(int i=1;i<=m;i++){
scanf("%d%d%d",&a[i].x,&a[i].y,&a[i].z);
f[i]=i;
}
sort(a+1,a+m+1,cmp);
for(int i=1;i<=m;i++){
int x=find(a[i].x),y=find(a[i].y);
if(cnt<n-1&&a[i].z>k){
if(x!=y) sum+=a[i].z-k,flag=1;
}
if(x!=y) f[x]=y,cnt++;
if(cnt==n-1){
ans=min(ans,abs(k-a[i].z));
if(flag) return printf("%lld\n",sum),0;
}
//cout<<i<<' '<<cnt<<' '<<sum<<endl;
}
printf("%d\n",ans);
return 0;
}
int main()
{
int Case=1;
while(Case--) Main();
return 0;
}
详细
小提示:点击横条可展开更详细的信息
Test #1:
score: 5
Accepted
time: 0ms
memory: 1216kb
input:
20 80 10 11 10 207 8 15 45 2 9 253 10 8 91 10 14 174 20 19 272 20 3 69 4 7 9 19 12 192 3 5 21 20 1 2...
output:
651
result:
ok single line: '651'
Test #2:
score: 5
Accepted
time: 1ms
memory: 1216kb
input:
20 80 10 8 15 24 16 14 128 7 9 8 6 1 12 4 11 273 9 14 238 8 17 155 11 5 220 15 10 132 17 7 10 9 18 1...
output:
569
result:
ok single line: '569'
Test #3:
score: 5
Accepted
time: 0ms
memory: 1220kb
input:
20 80 10 1 13 196 6 2 133 11 14 193 4 11 148 11 19 21 16 15 84 3 19 201 5 15 286 11 16 161 12 13 296...
output:
633
result:
ok single line: '633'
Test #4:
score: 5
Accepted
time: 0ms
memory: 1220kb
input:
20 80 10 5 15 33 9 13 52 9 5 48 8 3 251 6 9 281 8 9 111 18 17 48 8 14 145 19 15 299 4 20 88 6 2 281 ...
output:
596
result:
ok single line: '596'
Test #5:
score: 5
Accepted
time: 0ms
memory: 1220kb
input:
20 80 10 6 15 124 7 15 242 6 5 172 11 2 46 3 4 273 2 4 173 7 9 175 9 16 264 17 14 15 16 17 211 8 18 ...
output:
989
result:
ok single line: '989'
Test #6:
score: 5
Accepted
time: 0ms
memory: 1220kb
input:
20 80 10 6 5 252 2 20 182 20 14 107 5 15 128 4 10 283 8 17 21 2 17 203 9 4 289 18 4 218 3 15 25 10 9...
output:
571
result:
ok single line: '571'
Test #7:
score: 5
Accepted
time: 29ms
memory: 2764kb
input:
2000 100000 800 1287 1255 1987 1744 883 836 149 1453 1336 351 1172 1071 850 1465 848 740 1675 863 11...
output:
6
result:
ok single line: '6'
Test #8:
score: 5
Accepted
time: 29ms
memory: 2764kb
input:
2000 100000 800 540 62 1546 684 1940 1135 506 1341 1784 1850 361 1977 18 140 1635 1651 1916 1907 199...
output:
57
result:
ok single line: '57'
Test #9:
score: 5
Accepted
time: 20ms
memory: 2764kb
input:
2000 100000 800 1450 642 1197 990 388 1850 1656 809 1402 725 786 1349 613 1059 890 1259 1575 1064 95...
output:
1
result:
ok single line: '1'
Test #10:
score: 5
Accepted
time: 34ms
memory: 2772kb
input:
2000 100000 10000000 232 194 5205389 1290 1320 94756446 1596 1172 8604877 1838 1057 38095640 1301 54...
output:
169
result:
ok single line: '169'
Test #11:
score: 5
Accepted
time: 36ms
memory: 2776kb
input:
2000 100000 10000000 1377 361 48147042 1023 1928 5049880 1696 843 14727225 920 1294 58661444 1665 51...
output:
533
result:
ok single line: '533'
Test #12:
score: 5
Accepted
time: 28ms
memory: 2780kb
input:
2000 100000 10000000 23 1840 61297021 1090 1814 98946038 1413 1691 85852947 86 1463 92991569 1268 82...
output:
230103
result:
ok single line: '230103'
Test #13:
score: 5
Accepted
time: 74ms
memory: 4328kb
input:
200000 200000 10000000 163447 52269 827108961 69433 60328 8764874 184517 157379 878957413 2825 13277...
output:
98144644196729
result:
ok single line: '98144644196729'
Test #14:
score: 5
Accepted
time: 76ms
memory: 4336kb
input:
200000 200000 10000000 26437 26449 733968315 72457 129890 760533116 45625 117585 453891083 113120 65...
output:
97982017911608
result:
ok single line: '97982017911608'
Test #15:
score: 5
Accepted
time: 78ms
memory: 4332kb
input:
200000 200000 10000000 134481 172469 958604013 187505 51187 883335613 78523 97379 748522908 76899 44...
output:
98108458217572
result:
ok single line: '98108458217572'
Test #16:
score: 5
Accepted
time: 72ms
memory: 4328kb
input:
200000 200000 10000000 31044 159067 847353551 87451 43252 982699932 138867 5542 154557540 83604 6864...
output:
98165693118564
result:
ok single line: '98165693118564'
Test #17:
score: 5
Accepted
time: 74ms
memory: 4328kb
input:
200000 200000 10000000 19846 69397 59750638 19566 101018 183206436 7465 190436 164547218 192600 1650...
output:
98270021595856
result:
ok single line: '98270021595856'
Test #18:
score: 5
Accepted
time: 74ms
memory: 4332kb
input:
200000 200000 10000000 75029 14324 856954422 6328 45799 557275111 92416 7355 61760133 58432 149196 6...
output:
98016594710576
result:
ok single line: '98016594710576'
Test #19:
score: 5
Accepted
time: 73ms
memory: 4328kb
input:
200000 200000 10000000 50062 13355 435813272 161002 4865 505414563 118169 48194 579627562 139289 413...
output:
98085543969676
result:
ok single line: '98085543969676'
Test #20:
score: 5
Accepted
time: 80ms
memory: 4328kb
input:
200000 200000 10000000 5476 97888 999474454 20665 24758 972246854 170123 118973 486801275 114106 174...
output:
97937044812669
result:
ok single line: '97937044812669'