fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int trips(int weight[],int num){
  4. 	unordered_map<int,int>w;
  5. 	int count;
  6. 	for(int i=0;i<num;i++){
  7. 		w[weight[i]]++;
  8. 	}
  9. 	int ans=0;
  10. 	for(int i=0;i<num;i++){
  11. 		count=0;
  12. 		if(w[i]%3==0){
  13. 			count=w[i]/3;
  14. 		}
  15. 		else{
  16. 			count+=w[i]/3+1;
  17. 		}
  18. 		ans=ans+count;
  19. 	}
  20. 	return ans;
  21.  
  22. }
  23.  
  24. int main() {
  25. 	// your code goes here
  26. 	int n;
  27. 	cin>>n;
  28. 	int packageWeight[n];
  29. 	for(int i=0;i<n;i++){
  30. 		cin>>packageWeight[i];
  31. 	}
  32. 	cout<<"the minimum number of trips are:"<<trips(packageWeight,n);
  33. 	return 0;
  34. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
copy 
7
1 8 5 8 5 1 1
stdout
copy 
the minimum number of trips are:2
https://ideone.com/LYT130
language:
C++ (gcc 8.3)
created:
23 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!