啊？？？我这还是不行

C++编译器里是这样的，你咋过的

#include<iostream>
#include<stdio.h>
#include<cmath>
using namespace std;
int main(){
??? int a, b, c;
??? cin >> a >> b >> c;
??? if(a > b)swap(a, b);
??? if(b > c)swap(b, c);
??? if(a+b > c){
??????? double p = (a+b+c)/2.0;
??????? p = p*(p-a)*(p-b)*(p-c);
??????? printf("%.2lf", sqrt(p));
??? }else cout << "NO";
??? return 0;
}

@Infinity_: 试试这个(别问一不一样，试就行)

#include<iostream>
#include<stdio.h>
#include<cmath>
using namespace std;
int main(){
    int a, b, c;
    cin >> a >> b >> c;
    if(a > b)swap(a, b);
    if(b > c)swap(b, c);
    if(a+b > c)
    {
        double p = (a+b+c)/2.0;
        p = p*(p-a)*(p-b)*(p-c);
        printf("%.2lf", sqrt(p));
    }
    else
        cout << "NO";
    return 0;
}

@240701zj苗逸宸 (240115zj苗逸宸): 不知道缩进是咋回事