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Cod sursa(job #342446)
#include<cstdio>
#define N 400
short int n,m;
int delta,num,rez;
bool radical()
{
for (int i=0; i*i<=delta; ++i)
if (i*i==delta)
{
delta=i;
return true;
}
return false;
}
void ecuatie(int h, int w)
{
num=1;
for (int a=2; a<h; ++a)
{
delta=w*w-4*a*(h-a);
if (radical())
{
int c=(w-delta);
if (c%2==0&&c/2>=2&&c/2<w)
++num;
else
if (delta)
{
c=w+delta;
if (c%2==0&&c/2>=2&&c/2<w)
++num;
}
}
}
}
void citire()
{
freopen("dreptunghiuri.in","r",stdin);
freopen("dreptunghiuri.out","w",stdout);
scanf("%hd%hd",&m,&n);
for (int i=2; i<=n; ++i)
{
/*ecuatie(i,i);
rez+=num*(n-i+1)*(m-i+1);*/
for (int j=2; j<=m; ++j)
{
ecuatie(i,j);
rez+=num*(n-i+1)*(m-j+1);
}
}
printf("%d",rez);
}
int main()
{
citire();
return 0;
}