UVa 11588 Image Coding

#include <iostream>
#include <cmath>
using namespace std;

int main() {
    int c, T, R, C, N, M, max, maxcount;
    char line[20];
    cin >> T;
    for(int Case = 1; Case <= T; Case++) {
        int Alpha[26] = {0};
        cin >> R >> C >> M >> N;
        for(int i = 0; i < R; i++) {
            cin >> line;
            for(int j = 0; line[j]; j++)
                Alpha[line[j] - 65]++;
        }
        max = 0;
        for(int i = 1; i < 26; i++)
            if(Alpha[max] < Alpha[i]) max = i;
        maxcount = 0;
        for(int i = 0; i < 26; i++)
            if(Alpha[max] == Alpha[i]) maxcount += Alpha[i];
        cout << "Case " << Case << ": " << (maxcount * M) + ((R * C - maxcount) * N) << endl;
    }
    return 0;
}