ADAFRIEN - Ada and Friends
Ada the Ladybug has many friends. They always celebrate something and Ada has to buy them gifts. It is pretty costly so she have decided to unfriend some of them. What is the maximum of money she can spare?
Input
The first line of each test-case will contain two integers 1 ≤ Q K ≤ 105, the number of celebrations (Q) and the maximum number of friends Ada wants to unfriend (K).
The next Q lines will contain s (the name of friend to whom Ada will buy gift) and 1 ≤ E ≤ 109+1 (the expenses).
Names will contain at most 40 lowercase English letters.
Output
For each test-case, print the number of money Ada could spare.
Example Input
6 1 uvuvwevwevweonyetenyevweugwemubwemossas 10 ryuk 11 uvuvwevwevweonyetenyevweugwemubwemossas 5 fegla 3 tenshikanade 7 fegla 2
Example Output
15
Example Input
4 3 frodo 1 harrypotter 2 frodo 2 harrypotter 2
Example Output
7
Example Input
7 2 waynebot 7 lhic 4 petr 5 umnik 9 izrak 6 tourist 11 zlobobber 9
Example Output
20
Example Input
6 3 dufresne 5 gump 11 dufresne 3 mcmurphy 19 leon 10 dufresne 1
Example Output
40
hide comments
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piyush_code:
2024-07-17 18:16:32
simple problem
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tarun_28:
2020-06-01 15:07:14
And obviously, using "unordered" map will be more efficient here.
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satish18:
2019-11-07 12:06:49
Beware when maximum number of friends Ada wants to unfriend (K) is greater than Ada friends. |
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aminetrabelsi:
2019-09-11 01:13:54
there can be 10^5 similar names each can be up to 10^9+1. if you use int you will get wrong answer |
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justasle:
2019-07-15 21:09:49
In the problem statement is it not guaranteed that K will always be <= the amount of unique friends. Be careful with this when solving the problem. Also, make sure to use long long instead of int to avoid overflow since the numbers can be quite large. |
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harsh_pandey:
2019-06-20 19:52:18
using map and sorting by second of element of map and then deleting k greatest elements from the map. wrong answer on 16 case. please help. |
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jodobear:
2019-03-02 16:30:23
Yeah, even i got NZEC in Python. @julkas |
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ajaytec227:
2018-11-17 07:46:42
Use 64 bit integer and not 32 bit type
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akjol2049:
2018-11-07 20:00:23
waynebot
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silverheart:
2018-10-06 23:21:55
@trishala_naman check your code your are accessing a value out of bound of an array that's why u are getting SIGSEGV |
| Added by: | Morass |
| Date: | 2017-10-08 |
| Time limit: | 2s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All |
| Resource: | Tunisian Collegiate Training Contest - Round #01 |
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