q

#include <cstdio>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main() 
{
    int flag=1;//0 no 1 yes
    int n;int m;
    int a[100001]={0};
    scanf("%d",&n);
    while(n--){
        scanf("%d",&m);
        for(int i=0;i<m;i++){
            scanf("%d",&a[i]);
        }
        flag = 1;
        for(int i=0;i<m-1;i++){
            if(a[i]>a[i+1]){
              flag=0;
              break;
            }
        }
        if(flag==1)
            printf("Yes
");
        else printf("No
");
        
    }
    return 0;
}