Submission #1846748

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Source Code Expand

#include <bits/stdc++.h>
#ifdef DEMETRIO
#define deb(...) fprintf(stderr,__VA_ARGS__)
#define deb1(x) cerr << #x << " = " << x << endl
#else
#define deb(...) 0
#define deb1(x) 0
#endif
#define pb push_back
#define mp make_pair
#define fst first
#define snd second
#define fore(i,a,b) for(int i=a,ThxDem=b;i<ThxDem;++i)
#define SZ(x) ((int)x.size())
using namespace std;
typedef long long ll;

int main(){
	ll n,a;
	scanf("%lld%lld",&n,&a);
	if(n==1){puts("1");return 0;}
	ll r=n;
	fore(i,2,50){
		ll s=0;
		ll z=(ll)(floor(pow(n,1./i))+.5),w=1;
		fore(_,0,i)w*=z,s+=z;
		while(w<n)w/=z,w*=z+1,s++;
		r=min(r,s+(i-1)*a);
	}
	printf("%lld\n",r);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:20:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld",&n,&a);
                         ^

Judge Result