Cod sursa(job #521335)
Utilizator | Data | 12 ianuarie 2011 08:34:46 | |
---|---|---|---|
Problema | Principiul includerii si excluderii | Scor | 30 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.29 kb |
#include<fstream.h>
ifstream f("pinex.in");
ofstream g("pinex.out");
int n,a,i,nr,x,y,m,b,r;
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;
}