제출 #473276

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
473276		BidoTeima	Usmjeri (COCI17_usmjeri)	C++17	0 / 140	130 ms	300 KiB

usmjeri

/// isA AC
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
void ACPLS(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
}
#define tc int tttttt;cin>>tttttt;while(tttttt--)
#define sumrange(l,r,arr) (l==0?arr[r]:arr[r]-arr[l-1])
#define all(v) v.begin(),v.end()
int main(){
    ACPLS(); 
    int n,m;
    cin>>n>>m;
    for(int i = 0; i < n-1; i++){
        int a,b;
        cin>>a>>b;
    }
    for(int i = 0; i < m; i++){
        int a,b;
        cin>>a>>b;
    }
    ll ans=1;
    for(int i = 1; i < n-1; i++){
        ans=(ans*2)%int(1e9+7);
    }
    cout<<ans;
}

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