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Cod sursa(job #920721)
#include <iostream>
#include <fstream>
#include <cstring>
#include <cctype>
using namespace std;
ifstream f("text.in");
ofstream g("text.out");
char c[1048578];
int n, i, l, l1, cuv;
int main()
{
f.getline(c, 1048577);
n=strlen(c);
for(i=0; i<n; i++)
{
if((c[i]>='A'&&c[i]<='Z')||(c[i]>='a'&&c[i]<='z')) l1++;
else
{
if(l1!=0) cuv++;
l+=l1;
l1=0;
}
}
if(isalpha(c[n-1])) { cuv++; l+=l1; }
g<<l/cuv;
return 0;
}