#include <iostream>
#include <cmath>
using namespace std;
int main(){
int n, counter = 0;
cin>>n;
for(int d=1;d<=n;d++){
for(int h=1;h<=d;h++){
int x = d*d - h*h;
for(int a=1;a<=sqrt(x);a++){
int b = sqrt(x - a*a);
if(a <= b){
if(b*b == x - a*a){
counter++;
}
}
else{
break;
}
}
}
}
cout<<counter;
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <iostream> #include <cmath> using namespace std; int main(){ int n, counter = 0; cin>>n; for(int d=1;d<=n;d++){ for(int h=1;h<=d;h++){ int x = d*d - h*h; for(int a=1;a<=sqrt(x);a++){ int b = sqrt(x - a*a); if(a <= b){ if(b*b == x - a*a){ counter++; } } else{ break; } } } } cout<<counter; return 0; } |
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