Given a graph with N nodes with each node numbered from 1 to N and M edges and a target vertex T. Find the number of different ways to reach target vertex T from vertex numbered 1.
N <= 2 * 10^5, M = min( 2 * 10^5, N * ( N — 1 ) / 2 )
№ | Пользователь | Рейтинг |
---|---|---|
1 | tourist | 3690 |
2 | jiangly | 3647 |
3 | Benq | 3581 |
4 | orzdevinwang | 3570 |
5 | Geothermal | 3569 |
5 | cnnfls_csy | 3569 |
7 | Radewoosh | 3509 |
8 | ecnerwala | 3486 |
9 | jqdai0815 | 3474 |
10 | gyh20 | 3447 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | maomao90 | 174 |
2 | awoo | 164 |
3 | adamant | 163 |
4 | TheScrasse | 159 |
5 | nor | 157 |
6 | maroonrk | 155 |
7 | -is-this-fft- | 152 |
8 | Petr | 146 |
8 | orz | 146 |
10 | BledDest | 145 |
How to solve this graph problem?
Given a graph with N nodes with each node numbered from 1 to N and M edges and a target vertex T. Find the number of different ways to reach target vertex T from vertex numbered 1.
N <= 2 * 10^5, M = min( 2 * 10^5, N * ( N — 1 ) / 2 )
Rev. | Язык | Кто | Когда | Δ | Комментарий | |
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en6 | ALuca_Rd | 2022-02-06 23:39:27 | 39 | Tiny change: 'ash; 5sec \n' -> 'ash; 5sec \n\nCompute the answer modulo 10^9 + 7. \n' | ||
en5 | ALuca_Rd | 2022-02-06 23:38:19 | 27 | Tiny change: ' ) / 2 )` \n' -> ' ) / 2 )` \n\nTime limit - 5sec \n' | ||
en4 | ALuca_Rd | 2022-02-06 21:40:47 | 8 | Tiny change: ', N * ( N — 1 ) / 2 )' -> ', N * ( N - 1 ) / 2 )' | ||
en3 | ALuca_Rd | 2022-02-06 21:40:21 | 9 | |||
en2 | ALuca_Rd | 2022-02-06 21:39:05 | 2 | Tiny change: '= 2 * 10^5\nM = min(' -> '= 2 * 10^5, \nM = min(' | ||
en1 | ALuca_Rd | 2022-02-06 21:37:57 | 282 | Initial revision (published) |
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