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 |
---|---|---|---|---|---|---|---|---|---|
#214651 | #2681. How Many Paths? | naroto2022 | 50 | 6724ms | 17432kb | C++ | 888b | 2024-11-20 22:59:14 | 2024-11-20 23:11:35 |
answer
#include <bits/stdc++.h>
using namespace std;
const int N=4e5+5;
vector<int>G[N];
int n,m,o[N],vis[N],inst[N];
void dfs(int x){
vis[x]=inst[x]=o[x]=1;
for(int i=0;i<G[x].size();i++){
int y=G[x][i];
if(!vis[y])dfs(y);
else if(inst[y])o[y]=-1;
else if(o[y]!=-1)o[y]=2;
}
inst[x]=0;
}
void dfs2(int x,int op){
vis[x]=1;
if(o[x]!=-1&&o[x]!=op)o[x]=op;
for(int i=0;i<G[x].size();i++){
int y=G[x][i];
if(!vis[y])dfs2(y,op);
}
}
inline void mset(int*a){for(int i=0;i<=n;i++)a[i]=0;}
void solve(){
cin>>n>>m;
for(int i=0;i<=n;i++)G[i].clear();
for(int i=1,u,v;i<=m;i++)cin>>u>>v,G[u].push_back(v);
mset(vis),mset(inst),dfs(1);
mset(vis);
for(int i=1;i<=n;i++)if(o[i]==2)dfs2(i,2);
mset(vis);
for(int i=1;i<=n;i++)if(o[i]==-1)dfs2(i,-1);
for(int i=1;i<=n;i++)cout<<o[i]<<' ';puts("");
}
int main(){int T=1;while(T--)mset(o),solve();}
详细
小提示:点击横条可展开更详细的信息
Test #1:
score: 5
Accepted
time: 344ms
memory: 15156kb
input:
50000 500000 27433 23782 1927 1159 20346 8794 27393 18828 40557 32372 29462 34217 31695 6752 2253 19...
output:
1 2 0 2 0 0 2 0 2 2 0 2 0 2 2 0 0 2 2 0 2 2 0 2 2 0 1 2 2 2 0 2 0 0 2 2 0 2 0 0 2 2 2 1 0 2 0 0 2 0 ...
result:
ok single line: '1 2 0 2 0 0 2 0 2 2 0 2 0 2 2 ... 0 1 1 2 2 0 2 0 2 2 0 0 0 0 2 '
Test #2:
score: 5
Accepted
time: 365ms
memory: 15128kb
input:
50000 500000 30894 37863 18739 43205 26461 20214 15741 957 38985 43365 15978 10327 7414 35300 17146 ...
output:
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
ok single line: '1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '
Test #3:
score: 5
Accepted
time: 360ms
memory: 15052kb
input:
50000 500000 38020 5057 495 7556 33072 22521 28583 41495 7199 42249 37197 26482 34166 16408 33429 19...
output:
1 0 2 0 0 2 0 0 0 2 2 2 2 0 0 0 0 2 2 2 0 2 2 0 0 2 0 0 0 0 0 0 0 0 2 0 0 0 0 2 0 0 0 2 0 2 2 0 1 0 ...
result:
ok single line: '1 0 2 0 0 2 0 0 0 2 2 2 2 0 0 ... 0 0 2 1 0 0 0 0 0 0 2 0 2 1 0 '
Test #4:
score: 5
Accepted
time: 344ms
memory: 15216kb
input:
50000 500000 9177 925 34439 28325 7099 9560 21204 48849 36028 23762 6297 46964 38036 31855 6292 1832...
output:
1 2 2 2 0 2 0 2 2 0 1 0 2 2 2 0 2 0 2 0 0 2 2 2 0 2 0 0 2 2 0 2 2 0 0 2 0 0 2 2 2 0 0 0 2 0 2 0 2 2 ...
result:
ok single line: '1 2 2 2 0 2 0 2 2 0 1 0 2 2 2 ... 1 0 0 0 2 0 0 1 0 2 2 0 2 2 0 '
Test #5:
score: 5
Accepted
time: 343ms
memory: 15252kb
input:
50000 500000 30632 1595 20715 35227 44119 45259 47444 36877 6942 14652 2864 18557 42367 19431 38615 ...
output:
1 2 0 0 0 0 0 2 0 0 0 0 0 0 2 2 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 2 0 0 0 0 0 0 0 0 ...
result:
ok single line: '1 2 0 0 0 0 0 2 0 0 0 0 0 0 2 ... 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '
Test #6:
score: 5
Accepted
time: 334ms
memory: 15052kb
input:
50000 500000 33040 23079 35743 21197 49128 38373 36656 46198 17910 29433 45170 24921 28618 34080 100...
output:
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 2 2 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 0 0 2 ...
result:
ok single line: '1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 '
Test #7:
score: 5
Accepted
time: 359ms
memory: 15224kb
input:
50000 500000 5226 27470 49597 10290 40326 34407 17000 37084 26244 45989 48273 4706 15981 19231 26219...
output:
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
ok single line: '1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '
Test #8:
score: 5
Accepted
time: 346ms
memory: 15248kb
input:
50000 500000 16952 41617 2923 24354 4446 41320 8355 41065 23930 48553 5990 23289 30279 14635 16174 1...
output:
1 0 2 2 2 2 0 0 0 2 1 0 0 2 0 0 0 0 0 2 2 0 2 0 1 0 0 2 0 1 2 0 2 0 2 0 2 2 0 0 0 2 2 2 2 0 0 0 2 2 ...
result:
ok single line: '1 0 2 2 2 2 0 0 0 2 1 0 0 2 0 ... 0 0 2 2 2 0 0 1 2 1 0 2 0 2 0 '
Test #9:
score: 5
Accepted
time: 331ms
memory: 15252kb
input:
50000 500000 40140 17583 24758 1389 12331 1829 43385 23986 38136 28093 21088 33706 44519 38558 39908...
output:
1 2 0 2 2 0 0 2 0 1 2 2 2 2 2 2 0 2 0 2 2 0 2 0 2 2 0 0 2 0 2 2 0 0 2 2 0 2 2 2 2 2 2 2 2 2 2 0 0 2 ...
result:
ok single line: '1 2 0 2 2 0 0 2 0 1 2 2 2 2 2 ... 2 2 1 0 0 0 2 0 0 2 0 0 2 0 2 '
Test #10:
score: 5
Accepted
time: 301ms
memory: 15056kb
input:
50000 500000 26128 23615 14751 3541 9682 26585 39984 12641 32407 34611 40404 13491 49939 11363 19404...
output:
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...
result:
ok single line: '1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '
Test #11:
score: 0
Wrong Answer
time: 327ms
memory: 17428kb
input:
100000 500000 1 2 1 3 1 8 1 10 1 11 1 17 1 48 1 100 1 284 1 3021 1 7857 1 16097 1 18352 1 17333 1 81...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 2 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #12:
score: 0
Wrong Answer
time: 339ms
memory: 17432kb
input:
100000 500000 1 2 1 4 1 5 1 7 1 8 1 13 1 15 1 587 1 6125 1 8728 1 1965 1 12132 1 8992 1 17819 1 1358...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #13:
score: 0
Wrong Answer
time: 321ms
memory: 17428kb
input:
100000 500000 1 2 1 6 1 45 1 68 1 79 1 496 1 546 1 1119 1 1510 1 1665 1 3262 1 4727 1 4879 1 5430 1 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #14:
score: 0
Wrong Answer
time: 323ms
memory: 17432kb
input:
100000 500000 1 2 1 4 1 8 1 16 1 28 1 58 1 85 1 96 1 106 1 241 1 3315 1 3551 1 13 1 1969 1 12587 1 1...
output:
1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #15:
score: 0
Wrong Answer
time: 327ms
memory: 17432kb
input:
100000 500000 1 2 1 7 1 13 1 15 1 18 1 74 1 277 1 652 1 1116 1 8926 1 9947 1 12793 1 17696 1 1742 1 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #16:
score: 0
Wrong Answer
time: 335ms
memory: 17428kb
input:
100000 500000 1 2 1 4 1 5 1 7 1 8 1 21 1 26 1 29 1 31 1 254 1 385 1 451 1 678 1 1278 1 2323 1 3775 1...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #17:
score: 0
Wrong Answer
time: 343ms
memory: 17428kb
input:
100000 500000 1 2 1 15 1 44 1 60 1 183 1 365 1 582 1 1768 1 1793 1 6193 1 9585 1 12293 1 447 1 9529 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #18:
score: 0
Wrong Answer
time: 330ms
memory: 17432kb
input:
100000 500000 1 2 1 3 1 4 1 65 1 103 1 282 1 3710 1 5403 1 7559 1 4446 1 5382 1 5028 1 18244 1 5690 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 1 1 2 1 1 1 2 1 1 1 1 1 2 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #19:
score: 0
Wrong Answer
time: 321ms
memory: 17428kb
input:
100000 500000 1 2 1 6 1 310 1 510 1 643 1 667 1 4289 1 13736 1 15465 1 7212 1 8416 1 8424 1 11633 1 ...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 2 1 1 1 2 2 2 1 1 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...
Test #20:
score: 0
Wrong Answer
time: 331ms
memory: 17428kb
input:
100000 500000 1 2 1 4 1 6 1 7 1 10 1 16 1 247 1 433 1 540 1 2050 1 2671 1 13116 1 9660 1 18620 1 107...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 ...
result:
wrong answer 1st lines differ - expected: '1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...3 3 3 3 3 3 3 3 3 3 3 3 ...