#include #include #include using namespace std; #define maxx 0x3f3f3f3f #define ll __int64 int a[100005]; int b[5005]; int main() { int t,n,m,z,l; int i,j; scanf("%d",&t); while(t--) { int flag=0; memset(b,0,sizeof(b)); scanf("%d%d",&n,&m); for(i=0;i