UVa 201 - Squares

   卡了我两天。用各种循环，标号把我弄晕了，好不容易做出来以后输出的两个数弄反了。

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

int H[15][15], V[15][15];
void squares(char line, int i, int j){
    if(line == 'H')
        H[i][j] = 1;
    if(line == 'V')
        V[i][j] = 1;
}
int main(){
    int m, n, a, b, time = 0;
    while(cin >> n >> m){
        char line;
        int IS_OK = 1;
        while(m--){
            cin >> line >> a >> b;
            squares(line, a, b);
        }
        if(time++)
            cout << endl
            << "**********************************"
            << endl << endl;
        cout << "Problem #" << time
        << endl << endl;
        for(int size = 1; size < n; size++){
                int count_ = 0;
                for(int i = 1; i <= n - size; i++)
                    for(int j = 1; j <= n - size; j++){
                            int sign = 1;
                        for(int p = j; p < j + size; p++){
                            if(H[i][p] != 1|| H[i + size][p] != 1){
                                sign = 0;
                                break;
                            }
                        }
                        if(sign)
                            for(int p = i; p < i + size; p++){
                                if(V[j][p] != 1|| V[j + size][p] != 1){
                                    sign = 0;
                                    break;
                            }
                        }
                        if(sign){
                            count_++;
                            IS_OK = 0;
                        }
                }
            if(count_)
                cout << count_
                << " square (s) of size "
                << size << endl;
        }
        if(IS_OK)
            cout << "No completed squares can be found." << endl;
        memset(H, 0, sizeof(H));
        memset(V, 0, sizeof(V));
    }
    return 0;
}