Codeforces 443A. Anton and Letters Solution
Solve in C++:
//AH Tonmoy
//Department of CSE ,Islamic University
#include<bits/stdc++.h>
using namespace std;
int main()
{
int l,i,j,cn=0;
char s[10000];
gets(s);
l=strlen(s);
sort(s,s+l);
for(i=0; i<l; i++)
{
if(s[i]>96&&s[i]<123)
{
cn++;
if(s[i]==s[i+1])
cn--;
}
}
printf("%d\n",cn);
cn=0;
}
//AH Tonmoy
//Department of CSE ,Islamic University
#include<bits/stdc++.h>
using namespace std;
int main()
{
int l,i,j,cn=0;
char s[10000];
gets(s);
l=strlen(s);
sort(s,s+l);
for(i=0; i<l; i++)
{
if(s[i]>96&&s[i]<123)
{
cn++;
if(s[i]==s[i+1])
cn--;
}
}
printf("%d\n",cn);
cn=0;
}
nice sol.
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