OJ-Problems-Source/QUSTOJ/1450.cpp

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2016-04-20 07:50:27 +08:00
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;
int main()
{
int inc;
int five,two,one;
int five_max,two_max,one_max;
int ans=0;
scanf("%d",&inc);
five_max=inc/5;
two_max=inc/2;
one_max=inc;
for(five=1;five<=five_max;five++)
{
for(two=1;two<=two_max;two++)
{
for(one=1;one<=one_max;one++)
{
if(5*five+2*two+one==inc) ans++;
}
}
}
printf("%d\n",ans);
return 0;
}