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Cod sursa(job #769938)
#include<iostream>
#include<fstream>
#include<stdio.h>
using namespace std;
int main(){
freopen("text.in","r",stdin);
char a;
int litere=0;
int cuvinte=1;
int i=0;
while(scanf("%c",&a)>0){
if(a==' ') cuvinte++;
else
if(a>='a'&&a<='z'||a>='A'&&a<='Z')
litere++;
i++;
}
ofstream g("text.out");
g<<litere/cuvinte;
g.close();
return 0;
}