oj.uz

Submission #416040

# Submission time Handle Problem Language Result Execution time Memory
416040 2021-06-01T20:45:21 Z Pichon5 Paths (BOI18_paths) C++17
23 / 100
 3000 ms 13704 KB 
#include<bits/stdc++.h>
#define ll long long int
#define pb push_back
#define vi vector<int>
#define vll vector<ll>
#define ff first
#define ss second
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
//"\n" __builtin_popcount
using namespace std;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
const int tam=300005;
vi G[tam];
int C[tam];
ll res=0;
void dfs(int nodo, int mask){
   if(__builtin_popcount(mask)==4)return;
   for(auto it : G[nodo]){
      if(mask&(1<<C[it]))continue;
      res++;
      dfs(it,mask|(1<<C[it]));
   }
}
int  main(){
   int n,m,k,x,a,b;
   cin>>n>>m>>k;
   for(int i=1;i<=n;i++){
      cin>>x;
      C[i]=x-1;
   }   
   for(int i=0;i<m;i++){
      cin>>a>>b;
      G[a].pb(b);
      G[b].pb(a);
   }
   for(int i=1;i<=n;i++){
      dfs(i,(1<<C[i]));
   }
   cout<<res<<endl;
   return 0;
}

Compilation message

paths.cpp:12: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   12 | #pragma GCC optimization ("O3")
      | 
paths.cpp:13: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
   13 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7244 KB Output is correct
2 Correct 5 ms 7344 KB Output is correct
3 Correct 5 ms 7260 KB Output is correct
4 Correct 12 ms 7304 KB Output is correct
5 Correct 7 ms 7244 KB Output is correct
6 Correct 6 ms 7344 KB Output is correct
7 Correct 5 ms 7244 KB Output is correct
8 Correct 5 ms 7244 KB Output is correct
9 Correct 6 ms 7244 KB Output is correct
10 Correct 6 ms 7344 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3086 ms 13704 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7244 KB Output is correct
2 Correct 5 ms 7344 KB Output is correct
3 Correct 5 ms 7260 KB Output is correct
4 Correct 12 ms 7304 KB Output is correct
5 Correct 7 ms 7244 KB Output is correct
6 Correct 6 ms 7344 KB Output is correct
7 Correct 5 ms 7244 KB Output is correct
8 Correct 5 ms 7244 KB Output is correct
9 Correct 6 ms 7244 KB Output is correct
10 Correct 6 ms 7344 KB Output is correct
11 Execution timed out 3086 ms 13704 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7348 KB Output is correct
2 Execution timed out 3059 ms 9148 KB Time limit exceeded
3 Halted 0 ms 0 KB -