已知以下代码编译后生成可执行文件为run.exe,
则依次在命令行窗口输入
run 2 3
run 4 5
run 2 9
后,程序将输出结果为 ____
#include <iostream>#include <fstream>#include <cstdlib>using namespace std; int main(int argc, char *argv[]) { ifstream fin("res.bk"); int sum = 0; if (fin) { fin >> sum; fin.close(); } sum += atoi(argv[1]) * atoi(argv[2]); ofstream fout("res.bk"); fout << sum << endl; fout.close(); if (sum > 40) cout << "YES!" << sum; return 0; }