Cod sursa(job #521332)
Utilizator | Data | 12 ianuarie 2011 08:31:48 | |
---|---|---|---|
Problema | Principiul includerii si excluderii | Scor | 30 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.31 kb |
#include<fstream>
using namespace std;
ifstream f("pinex.in");
ofstream g("pinex.out");
int a,b,i,nr,m,r,x,y;
int main(){
f>>m;
while(m){
f>>a>>b;
nr=1;
for(i=2; i<=a; ++i){
x=i; y=b;
while(y){r=x%y; x=y; y=r;}
if(x==1) nr++;
}
g<<nr<<'\n';
m--;
}
g.close(); return 0;
}