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Cod sursa(job #574054)
#include<fstream.h>
ifstream f("text.in");
ofstream g("text.out");
long long nr,cuv,l,i;
char s[1000001];
int main()
{ f.getline(s,1000001);
l=strlen(s);
s[-1]=10;
for(i=0;i<l;i++) if(((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z'))&&((s[i-1]<'a'||s[i-1]>'z')&&(s[i-1]<'A'||s[i-1]>'Z'))) { cuv++;
nr++;
}
else if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z')) nr++;
g<<nr/cuv<<"\n";
f.close();
g.close();
return 0;
}