Submission #2864415

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Source Code Expand

#include <cstdio>
#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;
typedef long long ll;

vector<ll>h;

int main(){

	int N;
	ll A,B;

	scanf("%d %lld %lld",&N,&A,&B);

	int i;

	for(i=0;i<N;i++){
		ll hi;
		scanf("%lld",&hi);
		h.push_back(hi);
	}

	ll l,r,mid;

	l=0;
	r=1000000000;
	mid=(l+r)/2;

	while(1){

		ll sum=0;

		for(i=0;i<N;i++){
			if(h[i]-(mid*B)>0){
				if((h[i]-(mid*B))%(A-B)==0){
					sum+=(h[i]-(mid*B))/(A-B);
				}
				else{
					sum+=((h[i]-(mid*B))/(A-B))+1;
				}
			}
		}
		if(sum<=mid){
			r=(l+r)/2;
		}
		else{
			l=(l+r)/2;
		}
		mid=(l+r)/2;
		if(l==r-1){break;}
	}

	printf("%lld\n",r);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:16:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %lld %lld",&N,&A,&B);
                                ^
./Main.cpp:22:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&hi);
                    ^

Judge Result