题干

C++实现

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <queue>
#include <string>
using namespace std;struct Complex {int re;int im;//构造函数Complex(int _re, int _im) {//注意参数名字必须不同re = _re;im = _im;}
};//结构体不支持小于号运算符，所以我们要自定义<运算符(运算符重载)
bool operator<(Complex lhs, Complex rhs) {if (lhs.re * lhs.re + lhs.im * lhs.im < rhs.re * rhs.re + rhs.im * rhs.im) {return true;}else {return false;}
}int main() {int n;scanf("%d", &n);priority_queue<Complex> pqueue;for (int i = 0; i < n; i++) {char actionArr[30];scanf("%s", actionArr);string action = actionArr;if (action == "Pop") {if (pqueue.empty()) {printf("empty\n");}else {printf("%d+i%d\n", pqueue.top().re, pqueue.top().im);pqueue.pop();printf("SIZE = %d\n", pqueue.size());}}else if (action == "Insert") {int re, im;scanf("%d+i%d", &re, &im);//格式化输入Complex c(re, im);pqueue.push(c);printf("SIZE = %d\n", pqueue.size());}}
}