Submission #213644

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

#define mygc(c) (c)=getchar_unlocked()
#define mypc(c) putchar_unlocked(c)

#define ll long long

void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);}
void reader(int *x, int *y){reader(x);reader(y);}
void reader(int *x, int *y, int *z){reader(x);reader(y);reader(z);}
void writer(ll x, char c){int i,sz=0,m=0;char buf[20];if(x<0)m=1,x=-x;while(x)buf[sz++]=x%10,x/=10;if(!sz)buf[sz++]=0;if(m)mypc('-');while(sz--)mypc(buf[sz]+'0');mypc(c);}

int N, H;
int A, B, C, D, E;

int main(){
  int i, j, k;
  ll b, d, e;
  ll res = 1000000000000000000LL;

  reader(&N,&H);
  reader(&A,&B);
  reader(&C,&D,&E);

  d = 0;
  for(b=N;b>=0;b--){
    for(;;){
      e = N - b - d;
      if(e < 0) break;
      if(H + b*B + d*D - e*E <= 0){ d++; continue; }
      break;
    }
    if(e<0) break;

    res = min(res, b*A+d*C);
  }

  writer(res,'\n');

  return 0;
}

Submission Info

Judge Result