类型转换

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13

/******************************************************************************
type change
*******************************************************************************/
#include<iostream>
using namespace std;
int main(){
	int a,h;  
	float s;
	a=23; h=51;
	s=a*h/2.0;
	cout<<s<<endl;
	return 0;
}

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15

/******************************************************************************
type change
*******************************************************************************/
#include<iostream>
using namespace std;
int main(){
    int a,b,c;
    long long s;
     a=1562345672;
    b=1456789431;
    c=1234567824;
    s=(long long)a+b+c;     
    cout<<s<<endl;
	return 0;
}