题解 | 百钱买百鸡问题

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

int main() {
    
int a, b, c;
vector<vector<int>> arr;

for (int i = 0; i <= 20; i++) {
    for (int j = 0; j <= 33; j++) {
        for (int k = 0; k <= 300 ; k++) {
            if (k % 3 == 0 && (i * 5 + j * 3 + k / 3) == 100 && (i + j + k) == 100) {
                vector<int> v = { i, j, k };
                arr.push_back(v);
            }
        }
    }
}

for (int i = 0; i < arr.size(); i++) {
    for (int j = 0; j < 3; j++)
        cout << arr[i][j] << ' ';

    cout << endl;
}

    
}