#include <cstdio>using namespace std;int main(){int nCase;scanf("%d",&nCase);while(nCase--){int max=0,min=200,n,a;scanf("%d",&n);while(n--){scanf("%d",&a);if(a>max)max=a;if(a<min)min=a;}printf("%dn",2*(max-min));}return 0;}
#include <cstdio>using namespace std;int main(){int nCase;scanf("%d",&nCase);while(nCase--){int max=0,min=200,n,a;scanf("%d",&n);while(n--){scanf("%d",&a);if(a>max)max=a;if(a<min)min=a;}printf("%dn",2*(max-min));}return 0;}名师互学网 版权所有 (c)2021-2022 ICP备案号：晋ICP备2021003244-6号
