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POPCORN - Bỏng ngô

Example

Input:
5 2
2 4 3
1 5 6
4 8 10
7 8 2
10 11 2
Output:
21
Input:
3 3
1 2 2
2 3 3
1 3 5

Output:
10

 Giải thích:


Được gửi lên bởi:noname00.pas
Ngày:2017-11-28
Thời gian chạy:0.100s
Giới hạn mã nguồn:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Ngôn ngữ cho phép:C-CLANG C CSHARP C++ 4.3.2 CPP CPP14 CPP14-CLANG C99 JAVA PAS-FPC PYTHON PYTHON3
Nguồn bài:Bài tập Ôn HN 01/2017 (Thầy Nguyễn Đức Nghĩa)

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