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I Love Balls

CF
1983E2300· international master2s256 MB⌨ stdin/stdout
#combinatorics#math#probabilities

Examples

Sample 1of 3multi-test • hover to link
Input
1
5 2
10 20 5 15 25
Output
45 30
Sample 2of 3multi-test • hover to link
Input
5
1 1
732507
2 2
5817860 5398510
5 1
2122894 4951549 2750585 7821535 3214167
8 4
1405323 5069867 6883092 6972029 328406 2478975 7628890 9973340
4 2
9662050 3566134 3996473 9872255
Output
732507 0
11216370 0
810642660 210218077
722402997 318336932
349086489 678010430
Sample 3of 3multi-test • hover to link
Input
5
3 3
1095611 8219204 7773462
2 1
8176490 2774103
3 1
9178636 5138057 3367761
12 9
7597698 6843019 2298534 1522386 4969588 1340345 3967362 9152890 6689668 9986080 4745473 7407325
10 5
6986368 2397882 5804127 6980694 3740836 3215836 5195724 3179261 4136769 4544231
Output
17088277 0
6862348 4088245
677038671 340645790
36949997 29570371
725118051 321063684
1983E.cpp
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Ln 11·137 BGNU C++20 (64)