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Cod sursa(job #688532)
#include<fstream>
#include<string.h>
using namespace std;
int main()
{
ifstream f("text.in");
ofstream g("text.out");
char a,b;
long i,nr=0,n=0;
f>>a;
if((a>='a' && a<='z' )|| (a>='A' && a<='Z'))
{
n++;
nr++;
}
while(f.get(b))
{
if((b>='a' && b<='z' )|| (b>='A' && b<='Z'))
{
nr++;
if(!(a>='a' && a<='z') && !( a>='A' && a<='Z'))
{
n++;
}
}
a=b;
}
g<<nr/n;
}