oj.uz

Submission #912923

# Submission time Handle Problem Language Result Execution time Memory
912923 2024-01-20T04:31:06 Z 1075508020060209tc Senior Postmen (BOI14_postmen) C++
55 / 100
 500 ms 65612 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];

int ans[500005];
int asz;
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]^nw;
    dfs(v);
}
ans[asz++]=nw;
}

int stk[510005];
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];
 //   scanf("%d",&ar[i]);
   // scanf("%d",&br[i]);
    e[ar[i]].push_back(i);
    e[br[i]].push_back(i);
    ar[i]^=br[i];
}
dfs(1);
int ssz=0;
//stack<int>stk;
for(int i=0;i<asz;i++){
    //vector<int>vc;
    int v=ans[i];
    if(visv[v]){
        while(1){
  //          vc.push_back(stk.back());
            //printf("%d ",stk[ssz-1]);
            cout<<stk[ssz-1]<<" ";
            if(stk[ssz-1]==v){cout<<"\n";break;}

            visv[stk[ssz-1]]=0;
            //stk.pop();
            ssz--;
        }
//        fans.push_back(vc);
    }else{
        visv[v]=1;
        stk[ssz++]=v;
    }
}return 0;

}

Compilation message

postmen.cpp: In function 'void dfs(int)':
postmen.cpp:20:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 | for(;eit[nw]<e[nw].size();eit[nw]++){
      |      ~~~~~~~^~~~~~~~~~~~~

Subtask #1
38.0 / 38.0

# Verdict Execution time Memory 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 5 ms 14940 KB Output is correct
5 Correct 5 ms 14936 KB Output is correct
6 Correct 7 ms 14940 KB Output is correct
7 Correct 8 ms 15708 KB Output is correct
8 Correct 6 ms 14936 KB Output is correct
9 Correct 33 ms 23544 KB Output is correct
10 Correct 6 ms 14936 KB Output is correct
11 Correct 6 ms 15188 KB Output is correct
12 Correct 34 ms 23752 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 14852 KB Output is correct
2 Correct 4 ms 14684 KB Output is correct
3 Correct 4 ms 14684 KB Output is correct
4 Correct 6 ms 14936 KB Output is correct
5 Correct 4 ms 15192 KB Output is correct
6 Correct 6 ms 14936 KB Output is correct
7 Correct 8 ms 15708 KB Output is correct
8 Correct 7 ms 14936 KB Output is correct
9 Correct 40 ms 23384 KB Output is correct
10 Correct 7 ms 14936 KB Output is correct
11 Correct 5 ms 14936 KB Output is correct
12 Correct 33 ms 23632 KB Output is correct
13 Correct 47 ms 26452 KB Output is correct
14 Correct 57 ms 23180 KB Output is correct
15 Correct 56 ms 25280 KB Output is correct
16 Correct 41 ms 26448 KB Output is correct
17 Correct 49 ms 21072 KB Output is correct
18 Correct 41 ms 24144 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 14680 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 14936 KB Output is correct
5 Correct 4 ms 14940 KB Output is correct
6 Correct 6 ms 14936 KB Output is correct
7 Correct 9 ms 15704 KB Output is correct
8 Correct 5 ms 14940 KB Output is correct
9 Correct 28 ms 23596 KB Output is correct
10 Correct 6 ms 14936 KB Output is correct
11 Correct 5 ms 14940 KB Output is correct
12 Correct 31 ms 23632 KB Output is correct
13 Correct 41 ms 26456 KB Output is correct
14 Correct 44 ms 23120 KB Output is correct
15 Correct 40 ms 25160 KB Output is correct
16 Correct 69 ms 26668 KB Output is correct
17 Correct 47 ms 21072 KB Output is correct
18 Correct 45 ms 24112 KB Output is correct
19 Correct 422 ms 65612 KB Output is correct
20 Correct 413 ms 48788 KB Output is correct
21 Correct 427 ms 58924 KB Output is correct
22 Execution timed out 515 ms 65364 KB Time limit exceeded
23 Halted 0 ms 0 KB -