Merkkijono

input/code.cpp: In function 'int main()':
input/code.cpp:9:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<s.size(); ++i) t[s[i]-'a']=1;
                           ^

#include <iostream>

using namespace std;

int t[26], v;
int main(){
    string s;
    cin >> s;
    for(int i=0; i<s.size(); ++i) t[s[i]-'a']=1;
    for(int i=0; i<26; ++i) v+=t[i];
    cout << v;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED