题解 | 编排字符串 c++输出

#include <iostream>
#include <stack>  // 后进先出
using namespace std;

int main() {
 stack<string> strStack;
 stack<string> outStack;  // 备份strStack栈，不影响其继续压栈
 int m;
 string str;
 cin >> m;
 for (int i = 1; i <= m;i++) {
     cin >> str;
     strStack.push(str);
     outStack = strStack;
     cout << "1=" << outStack.top();
     outStack.pop();
     for (int j = 2; j <= 4;j++) {
         if (outStack.empty()) {
             break;
         }
         else {
             cout << " " << j << "=" << outStack.top();
             outStack.pop();
         }
     }
     cout << endl;
 }

 return 0;
}