fork(1) download

copy

#include <stdlib.h>
#include <iostream.h>
using namespace std;
 
int OGC(int c,int b,int a)
{
//     cout<"c="<<c <<endl;
//     cout<"b="<<c <<endl;
//     cout<"a="<<c <<endl;
 return 2*c*b*a   ;
 
}
 
 
//////Master
int main(){
    int n;
    int a,b,c,d,e;
    for(int i=0;i<2;i++){  //外層迴圈
    cout<<"the #1:";
    cin>>a;
    cout<<"the #2:";
    cin>>b;
    cout<<"the #3:";
    cin>>c;
    n= OGC(a,b,c) ;
    cout << "第"<<i+1<<"圈 n= " <<n<< endl;
    }
 
    system("Pause");
    return 0;
 
}

prog.cpp:2:22: error: iostream.h: No such file or directory
prog.cpp: In function ‘int main()’:
prog.cpp:20: error: ‘cout’ was not declared in this scope
prog.cpp:21: error: ‘cin’ was not declared in this scope
prog.cpp:27: error: ‘endl’ was not declared in this scope
prog.cpp:18: warning: unused variable ‘d’
prog.cpp:18: warning: unused variable ‘e’
prog.cpp:30: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result

Standard output is empty