cf B. Color the Fence
http://codeforces.com/contest/349/problem/B
贪心
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
const int inf=<<; int a[];
int v,k;
int main()
{
while(scanf("%d",&v)!=EOF)
{
int min1=inf;
k=;
for(int i=; i<=; i++)
{
scanf("%d",&a[i]);
if(a[i]<min1)
{
min1=a[i];
k=i;
}
else if(a[i]==min1&&k<i)
{
k=i;
}
}
if(v<min1)
{
printf("-1\n");
continue;
}
if(v%min1==)
{
int m=v/min1;
for(int i=; i<=m; i++)
{
printf("%d",k);
}
printf("\n");
}
else
{
int len=v/min1;
for(int j=len; j>=; j--)
{
for(int i=; i>=; i--)
{
int x=v-a[i];
if(x<) continue;
if(x/min1==j-)
{
printf("%d",i);
v-=a[i];
break;
}
}
}
printf("\n");
}
}
return ;
}
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