求平均数

ws247chenlixue1 LV 3 @ 2024-2-20 8:25:19

#include<iostream>
using namespace std;
int main(){
	int R1,R2,S;
    cin>>R1>>S;
    cout<<2*S-R1; 
    return 0;
}

ws247wangyuqiu1 LV 2 @ 2024-2-21 9:19:45

#include<iostream>
using namespace std;
int main(){
	int R1,R2,S;
    cin>>R1>>S;
    cout<<2*S-R1; 
    return 0;
}

ws247liangkun1 LV 1 @ 2024-2-21 9:37:42

#include<iostream>
using namespace std;
int main(){
	int R1,R2,S;
    cin>>R1>>S;
    cout<<2*S-R1; 
    return 0;
}

2023zhaoyiran1 LV 2 @ 2024-3-2 11:21:43

#include<iostream>
using namespace std;
int main(){
	int a,b,c;
	cin>>a>>b;
	c = b*2-a;
	cout<<c;
	return 0;
}

ws247liangkun1 LV 1 @ 2024-2-21 9:38:03

#include<iostream>
using namespace std;
int main(){
	int R1,R2,S;
    cin>>R1>>S;
    cout<<2*S-R1; 
    return 0;
}

2023donganling1 LV 7 @ 2024-3-2 11:22:34

#include<iostream>
using namespace std;
int main(){
	int a,y,x;
    cin>>a>>x;
    cout<<2*x-a; 
    return 0;
}

-2

rc245xingsixu1 LV 3 @ 2024-2-20 10:46:57

#include<iostream>
using namespace std;
int main(){
	int R1,R2,S;
    cin>>R1>>S;
    cout<<2*S-R1; 
    return 0;
}

-3
ws247yangzongzheng1 LV 1 @ 2024-2-21 9:10:51

#include using namespace std; int main() { int R1,R2,S; cin>>R1>>S; R2=2*S-R1; cout<<R2; return 0; }
-5
ws247luyitong1 LV 3 @ 2024-2-19 20:20:59

23456781 using namespace std;int main(){ int R1,S,R2; cin>>R1>>S; cout<<S*2-R1; return 0;}#include <bits/stdc++.h>