oj.uz

답안 #912884

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
912884 2024-01-20T03:58:27 Z 1075508020060209tc 어르신 집배원 (BOI14_postmen) C++14
55 / 100
 500 ms 75408 KB 
#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
//#define int long long
#define X first
#define Y second
#define SZ(x) (int)(x).size()

int n;int m;
int ar[500005];
int br[500005];
vector<int>e[500005];
int eit[500005];
bool vis[500005];
bool visv[500005];
vector<int>ans;
void dfs(int nw){
for(;eit[nw]<e[nw].size();eit[nw]++){
    int id=e[nw][eit[nw]];
    if(vis[id]){continue;}
    vis[id]=1;
    int v=ar[id]^br[id]^nw;
    dfs(v);
}
ans.push_back(nw);
}
vector<vector<int>>fans;

signed main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
cin>>n>>m;
for(int i=1;i<=m;i++){
    cin>>ar[i]>>br[i];
    e[ar[i]].push_back(i);
    e[br[i]].push_back(i);
}
dfs(1);
vector<int>stk;
for(int i=0;i<ans.size();i++){
    vector<int>vc;
    int v=ans[i];
    if(visv[v]){
        while(1){
            vc.push_back(stk.back());
            if(stk.back()==v){break;}
            visv[stk.back()]=0;
            stk.pop_back();
        }
        fans.push_back(vc);
    }else{
        visv[v]=1;
        stk.push_back(v);
    }
}
for(int i=0;i<fans.size();i++){
    for(int j=0;j<fans[i].size();j++){
        cout<<fans[i][j]<<" ";
    }cout<<"\n";
}


}

Compilation message

postmen.cpp: In function 'void dfs(int)':
postmen.cpp:18:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 | for(;eit[nw]<e[nw].size();eit[nw]++){
      |      ~~~~~~~^~~~~~~~~~~~~
postmen.cpp: In function 'int main()':
postmen.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 | for(int i=0;i<ans.size();i++){
      |             ~^~~~~~~~~~~
postmen.cpp:56:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 | for(int i=0;i<fans.size();i++){
      |             ~^~~~~~~~~~~~
postmen.cpp:57:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for(int j=0;j<fans[i].size();j++){
      |                 ~^~~~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14684 KB Output is correct
2 Correct 5 ms 14684 KB Output is correct
3 Correct 5 ms 14684 KB Output is correct
4 Correct 6 ms 15192 KB Output is correct
5 Correct 5 ms 14936 KB Output is correct
6 Correct 6 ms 15448 KB Output is correct
7 Correct 10 ms 16220 KB Output is correct
8 Correct 7 ms 15192 KB Output is correct
9 Correct 32 ms 23840 KB Output is correct
10 Correct 6 ms 15092 KB Output is correct
11 Correct 5 ms 14940 KB Output is correct
12 Correct 40 ms 24072 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14684 KB Output is correct
2 Correct 5 ms 14680 KB Output is correct
3 Correct 5 ms 14796 KB Output is correct
4 Correct 6 ms 15192 KB Output is correct
5 Correct 6 ms 14936 KB Output is correct
6 Correct 6 ms 15196 KB Output is correct
7 Correct 10 ms 16072 KB Output is correct
8 Correct 6 ms 14944 KB Output is correct
9 Correct 30 ms 24012 KB Output is correct
10 Correct 7 ms 14940 KB Output is correct
11 Correct 6 ms 14936 KB Output is correct
12 Correct 33 ms 24020 KB Output is correct
13 Correct 72 ms 27036 KB Output is correct
14 Correct 62 ms 23520 KB Output is correct
15 Correct 51 ms 27000 KB Output is correct
16 Correct 50 ms 27028 KB Output is correct
17 Correct 60 ms 21624 KB Output is correct
18 Correct 48 ms 25280 KB Output is correct

Subtask #3
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 14680 KB Output is correct
2 Correct 5 ms 14680 KB Output is correct
3 Correct 4 ms 14680 KB Output is correct
4 Correct 6 ms 15348 KB Output is correct
5 Correct 5 ms 14940 KB Output is correct
6 Correct 6 ms 15192 KB Output is correct
7 Correct 9 ms 16216 KB Output is correct
8 Correct 5 ms 14940 KB Output is correct
9 Correct 31 ms 23916 KB Output is correct
10 Correct 5 ms 14936 KB Output is correct
11 Correct 6 ms 14940 KB Output is correct
12 Correct 37 ms 24012 KB Output is correct
13 Correct 56 ms 27060 KB Output is correct
14 Correct 52 ms 23620 KB Output is correct
15 Correct 66 ms 27044 KB Output is correct
16 Correct 43 ms 26952 KB Output is correct
17 Correct 71 ms 21548 KB Output is correct
18 Correct 50 ms 25432 KB Output is correct
19 Execution timed out 583 ms 75408 KB Time limit exceeded
20 Halted 0 ms 0 KB -