oj.uz

Submission #912911

# Submission time Handle Problem Language Result Execution time Memory
912911 2024-01-20T04:26:16 Z 1075508020060209tc Senior Postmen (BOI14_postmen) C++14
55 / 100
 500 ms 79944 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 14680 KB Output is correct
2 Correct 4 ms 14684 KB Output is correct
3 Correct 5 ms 14684 KB Output is correct
4 Correct 5 ms 14936 KB Output is correct
5 Correct 4 ms 14948 KB Output is correct
6 Correct 5 ms 15196 KB Output is correct
7 Correct 9 ms 15964 KB Output is correct
8 Correct 5 ms 14936 KB Output is correct
9 Correct 33 ms 24920 KB Output is correct
10 Correct 6 ms 14936 KB Output is correct
11 Correct 4 ms 14936 KB Output is correct
12 Correct 31 ms 25192 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 14684 KB Output is correct
2 Correct 4 ms 14936 KB Output is correct
3 Correct 4 ms 14684 KB Output is correct
4 Correct 5 ms 14936 KB Output is correct
5 Correct 5 ms 14940 KB Output is correct
6 Correct 5 ms 15196 KB Output is correct
7 Correct 8 ms 15960 KB Output is correct
8 Correct 5 ms 14936 KB Output is correct
9 Correct 27 ms 25120 KB Output is correct
10 Correct 5 ms 14940 KB Output is correct
11 Correct 5 ms 14940 KB Output is correct
12 Correct 33 ms 25352 KB Output is correct
13 Correct 58 ms 28248 KB Output is correct
14 Correct 38 ms 23844 KB Output is correct
15 Correct 38 ms 26640 KB Output is correct
16 Correct 54 ms 28056 KB Output is correct
17 Correct 39 ms 21296 KB Output is correct
18 Correct 40 ms 25428 KB Output is correct

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14836 KB Output is correct
2 Correct 5 ms 14688 KB Output is correct
3 Correct 4 ms 14684 KB Output is correct
4 Correct 5 ms 14940 KB Output is correct
5 Correct 4 ms 14940 KB Output is correct
6 Correct 5 ms 15196 KB Output is correct
7 Correct 9 ms 15960 KB Output is correct
8 Correct 4 ms 14940 KB Output is correct
9 Correct 29 ms 24924 KB Output is correct
10 Correct 5 ms 14940 KB Output is correct
11 Correct 7 ms 15092 KB Output is correct
12 Correct 35 ms 25224 KB Output is correct
13 Correct 58 ms 28260 KB Output is correct
14 Correct 50 ms 23972 KB Output is correct
15 Correct 58 ms 26616 KB Output is correct
16 Correct 98 ms 28196 KB Output is correct
17 Correct 39 ms 21212 KB Output is correct
18 Correct 47 ms 25416 KB Output is correct
19 Correct 483 ms 73220 KB Output is correct
20 Correct 346 ms 52624 KB Output is correct
21 Correct 415 ms 71496 KB Output is correct
22 Execution timed out 517 ms 79944 KB Time limit exceeded
23 Halted 0 ms 0 KB -