#include <iostream> using namespace std; int main() { int solutionCount = 0; // 遍历九头鸟的可能数量 for (int bird = 0; bird * 9 <= 100; bird++) { // 遍历鸡的可能数量 for (int chicken = 0; chicken + bird * 9 <= 100; chicken++) { // 计算兔子的数量 int rabbit = 100 - bird * 9 - chicken; // 检查脚的总数是否为 100 if (bird * 2 + chicken * 2 + rabbit * 4 == 100) { cout << bird << " " << chicken << " " << rabbit << endl; solutionCount++; } } } cout << solutionCount << endl; return 0; } /************************************************************** Problem: 1076 User: linmiaoling Language: C++ Result: Accepted Time:25 ms Memory:2072 kb ****************************************************************/