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Cod sursa(job #28678)
#include <iostream>
#include <string.h>
using namespace std;
int litera(char c)
{
int i;
for(i=65; i<=90; i++)
if(int(c)==i) return 1;
for(i=97; i<=122; i++)
if(int(c)==i) return 1;
return 0;
}
int main()
{
char a[1000000];
freopen("text.in", "r", stdin);
freopen("text.out", "w", stdout);
cin.get(a, 1000000);
cin.get();
int n=strlen(a), i, j, b=0, l=0, c=0;
for(i=0; i<n; i++)
{
if(litera(a[i]))
{
b=1;
l++;
}
if(!litera(a[i]) && b)
{
b=0;
c++;
}
}
cout << l/c;
}