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Cod sursa(job #971815)
#include <fstream>
using namespace std;
ifstream fin("text.in");
ofstream fout("text.out");
int main()
{
char *a,x[100];
int cuv=0,lit=0;
while(fin>>x)
{
a=x;
if((*a>='A'&&*a<='Z')||(*a>='a'&&*a<='z')||(*a>='0'&&*a<='9'))
{
cuv++;
for(;*a!='\0';a++)
if((*a>='A'&&*a<='Z')||(*a>='a'&&*a<='z')||(*a>='0'&&*a<='9'))
lit++;
else
cuv++;
}
}
fout<<lit/cuv;
return 0;
}