计算 2 的幂

rc247chenbosheng1 LV 6 @ 2024-3-14 20:39:48

#include<bits/stdc++.h> 
using namespace std; 
int main(){ 
    int a,b,c; 
    cin>>a; 
    b=2; 
    c=pow(b,a); 
    cout<<c; 
    return 0; }

1
rc245lilinhao1 LV 7 @ 2024-3-17 11:20:31

#include<bits/stdc++.h> using namespace std; int main(){ int n,i=1; cin>>n; while(n>0){ i=i*2; n--; } cout<<i; return 0; }
0
rc244yeboqian1 LV 5 @ 2024-3-31 10:26:48
- #include<bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin>>a; b=2; c=pow(b,a); cout<<c; return 0; }
0
rc246lihao1 LV 6 @ 2024-2-23 21:43:53

#include<bits/stdc++.h> using namespace std; int main(){ int a,b,c; cin>>a; b=2; c=pow(b,a); cout<<c; return 0; }

-1

ws247liaoxusheng1 LV 6 @ 2024-4-17 13:57:33

using namespace std;
int main(){
	int a,b=2;
	cin>>a;
	for(int i = 1;i<a;i++){
		b=2*b;
	}
	cout<<b;
	return 0;
}

5 条题解