UVa - 414 - Machined Surfaces

#include <iostream>
#include <cstdio>
#include <string>
#include <cstring>
#include <algorithm>
using namespace std;

int main(){
    int n;
    string input;
    while(cin >> n){
        if(n == 0)break;
        int cnt[n], mn = 25;
        memset(cnt, 0, sizeof(cnt));
        getchar();
        for(int i = 0; i < n; i++){
            getline(cin, input);
            for(int j = 0; j < 25; j++)if(input[j] == 32)cnt[i]++;
            mn = min(mn, cnt[i]);
        }
        int sum = 0, temp;
        for(int i = 0; i < n; i++)temp = (cnt[i]-mn), sum += temp;
        cout << sum << endl;
    }
    return 0;
}