Submission #1026542

#TimeUsernameProblemLanguageResultExecution timeMemory
1026542hasan2006Paths (BOI18_paths)C++17
53 / 100
72 ms74068 KiB
#include <bits/stdc++.h> using namespace std; #define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0); #define rall(s) s.rbegin(),s.rend() #define all(s) s.begin(),s.end() #define pb push_back #define se second #define fi first #define ll long long #define ld long double #define YES cout<<"YES\n" #define Yes cout<<"Yes\n" #define yes cout<<"yes\n" #define NO cout<<"NO\n" #define No cout<<"No\n" #define no cout<<"no\n" const int N = 1e5 + 9 , mod = 1e9 + 7; ll a[N] , b[N] , dp[N][40] , c[N] , d[N] ; vector<int>v[N]; void solve() { ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ; cin>>n>>m>>k; for(i = 1; i <= n; i++){ cin>>a[i]; a[i]--; dp[i][1<<a[i]] = 1; } for(i = 1; i <= m; i++){ cin>>l>>r; v[l].pb(r); v[r].pb(l); } for(j = 1; j < 32; j++) for(i =n ; i > 0; i--) for(auto to : v[i]) if(j & (1 << a[i])) dp[i][j] += dp[to][j- (1 << a[i])] , s += dp[to][j- (1 << a[i])]; cout<<s<<"\n"; } int main(){ TL; /*#ifndef ONLINE_JUDGE freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout); #endif*/ int t = 1; // cin>>t; while(t--) { solve(); } } // Author : حسن

Compilation message (stderr)

paths.cpp: In function 'void solve()':
paths.cpp:26:12: warning: unused variable 'q' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |            ^
paths.cpp:26:30: warning: unused variable 'x' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                              ^
paths.cpp:26:34: warning: unused variable 'y' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                  ^
paths.cpp:26:46: warning: unused variable 'f' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                              ^
paths.cpp:26:58: warning: unused variable 'mn' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                                          ^~
paths.cpp:26:69: warning: unused variable 'mx' [-Wunused-variable]
   26 |     ll n , q , i , j ,l ,r , x , y , s = 0 , f , k , m , mn = 1e18, mx = 0 ;
      |                                                                     ^~
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