Problem:
Find the minimum difference between any pair in an unsorted array.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 |
#include <stdio.h> #include <algorithm> #include <iostream> using namespace std; int arr[105]; int res[100005]; int main() { int t,n,k,a; scanf("%d",&t); while(t--) { scanf("%d",&n); for(int i=0;i<105;i++) arr[i]=0; for(int i=0;i<n;i++) { scanf("%d",&a); arr[a]++; } //sort(arr,arr+n); k=0; for(int i=0;i<105;i++) { if(arr[i]==0) continue; for(int j=1;j<=arr[i];j++) res[k++]=i; } int MN=res[1]-res[0]; for(int i=2;i<n;i++) { if(res[i]-res[i-1]<MN) MN=res[i]-res[i-1]; } cout<<MN<<endl; } return 0; } |