Submission #548224

#	Time	Username	Problem	Language	Result	Execution time	Memory
548224		MilosMilutinovic	Remittance (JOI19_remittance)	C++14	0 / 100	1 ms	316 KiB

remittance

#include <bits/stdc++.h>
using namespace std;
const int N=1000050;
int n;
long long a[N],b[N];
int main(){
	scanf("%i",&n);
	for(int i=0;i<n;i++)scanf("%lld%lld",&a[i],&b[i]);
	for(int j=0;j<30;j++)for(int i=0;i<n;i++){
		if(a[i]>b[i]){
			long long x=(a[i]-b[i]+1)/2;
			a[i]-=2*x,a[(i+1)%n]+=x;
		}
	}
	bool ok=true;
	for(int i=0;i<n;i++)ok&=(a[i]==b[i]);
	puts(ok?"Yes":"No");
}

Compilation message (stderr)

remittance.cpp: In function 'int main()':
remittance.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |  scanf("%i",&n);
      |  ~~~~~^~~~~~~~~
remittance.cpp:8:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  for(int i=0;i<n;i++)scanf("%lld%lld",&a[i],&b[i]);
      |                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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