codechef BUY1GET1 - "buy1-get1" solution

codechef BUY1GET1 - "buy1-get1": http://www.codechef.com/problems/BUY1GET1

codechef BUY1GET1 - "buy1-get1" solution:  http://ideone.com/59HWlx

#include <iostream>

#include <cstdio>

#include <cstring>

using namespace std;

int main() {

int t, n, b[205], cnt;

char s[205];

scanf("%d", &t);

while(t--) {

scanf("%s", s);

n=strlen(s); cnt=0;

for(int i=0; i<n; i++) b[i]=1;

for(int i=0; i<n-1; i++) {

if(b[i]==0) continue;

for(int j=i+1; j<n; j++) {

if(s[i]==s[j]) { b[j]=0; break; }

}

}

for(int i=0; i<n; i++) cnt += b[i];

printf("%d\n", cnt);

}

return 0;

}