I have tried a number of test cases, i don’t know why i am getting wrong answer for my submission. Please help me out with this problem.
Here is my solution:
#include
#include
using namespace std;
int main(){
int t = 0, n = 0, c = 0;
unsigned int *a = new unsigned int[n];
cin >> t;
while(t–){
cin >> n >> c;
for(int i = 0; i < n; i++){
cin >> a[i];
}
sort(a, a + n);
unsigned int l = 0, h = a[n - 1], ans = 0;
while(l <= h){
unsigned int m = l + (h - l)/2;
int d = 1;
unsigned int pos = a[0];
for(int i = 0; i < n - 1; i++){
if(a[i + 1] - pos >= m){
pos = a[i + 1];
d++;
}
if(d == c){
break;
}
}
if(d < c)
h = m - 1;
else{
ans = m;
l = m + 1;
}
}
cout << ans << "\n";
}
return 0;
}
