Submission #528296

#	Time	Username	Problem	Language	Result	Execution time	Memory
528296		AdamGS	Remittance (JOI19_remittance)	C++17	0 / 100	1 ms	328 KiB

remittance

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
const int LIM=1e6+7;
ll A[LIM], B[LIM];
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    ll n;
    cin >> n;
    rep(i, n) cin >> A[i] >> B[i];
    rep(i, 30) rep(j, n) if(A[j]>B[j]) {
        ll x=A[j]-B[j];
        x/=2;
        A[j]-=2*x;
        A[(j+1)%n]+=x;
    }
    bool ok=true;
    rep(i, n) if(A[i]!=B[i]) ok=false;
    cout << (ok?"Yes":"No") << '\n';
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45