Alternating Triangle

#include <iostream>
using namespace std;

int main() {
    int i, j, N;

    cin >> N;
    char c;

    for (i=N; i>0; i--) {
        if (i%2)
            c = '*';
        else
            c = '#';
        for (j=0; j<i; j++)
            cout << c;
        cout << endl;
    }
    return 0;
}