| Task: | Lähetit |
| Sender: | Metabolix |
| Submission time: | 2015-07-16 22:41:44 +0300 |
| Language: | C++ |
| Status: | READY |
| Result: | 0 |
| group | verdict | score |
|---|---|---|
| #1 | WRONG ANSWER | 0 |
| #2 | WRONG ANSWER | 0 |
| #3 | WRONG ANSWER | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | WRONG ANSWER | 0.09 s | 1 | details |
| #2 | WRONG ANSWER | 0.09 s | 1 | details |
| #3 | WRONG ANSWER | 0.08 s | 1 | details |
| #4 | WRONG ANSWER | 0.09 s | 1 | details |
| #5 | ACCEPTED | 0.09 s | 1 | details |
| #6 | WRONG ANSWER | 0.08 s | 2 | details |
| #7 | WRONG ANSWER | 0.08 s | 2 | details |
| #8 | WRONG ANSWER | 0.09 s | 2 | details |
| #9 | WRONG ANSWER | 0.08 s | 2 | details |
| #10 | ACCEPTED | 0.09 s | 2 | details |
| #11 | WRONG ANSWER | 0.09 s | 3 | details |
| #12 | WRONG ANSWER | 0.07 s | 3 | details |
| #13 | WRONG ANSWER | 0.09 s | 3 | details |
| #14 | WRONG ANSWER | 0.08 s | 3 | details |
| #15 | ACCEPTED | 0.08 s | 3 | details |
Code
#include <iostream>
long t[2][202][202];
int main() {
int n, k;
std::cin >> n >> k;
for (int l = 0; l <= 1; ++l) {
for (int i = 0; i < n; ++i) {
int leveys = (i & ~1) + (l ? 1 : 2);
for (int j = 0; j <= k && j <= leveys; ++j) {
if (i) {
// ei uutta
t[l][i][j] = t[l][i-1][j];
// uusi edellisten lisäksi
if (j) {
t[l][i][j] = (t[l][i][j] + t[l][i-1][j-1] * leveys - (j-1)) % 1000000007;
}
} else {
// ensimmäisellä rivillä
// - yksi mihin tahansa (leveys)
// - monta ei mitenkään (0)
// - tyhjä rivi yhdellä tavalla (1)
t[l][i][j] = j ? j > 1 ? 0 : leveys : 1;
}
}
}
}
long ret = 0;
for (int i = 0; i <= k && i <= n; ++i) {
ret += (t[1][n-1][i] * t[0][n-2][k-i]) % 1000000007;
}
std::cout << (ret % 1000000007) << '\n';
}
Test details
Test 1
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 5 2 |
| correct output |
|---|
| 240 |
| user output |
|---|
| 263 |
Test 2
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 5 4 |
| correct output |
|---|
| 2728 |
| user output |
|---|
| 5216 |
Test 3
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 5 6 |
| correct output |
|---|
| 1960 |
| user output |
|---|
| 12792 |
Test 4
Group: 1
Verdict: WRONG ANSWER
| input |
|---|
| 5 8 |
| correct output |
|---|
| 32 |
| user output |
|---|
| 1448 |
Test 5
Group: 1
Verdict: ACCEPTED
| input |
|---|
| 5 10 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |
Test 6
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 10 4 |
| correct output |
|---|
| 1809464 |
| user output |
|---|
| 2655285 |
Test 7
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 10 8 |
| correct output |
|---|
| 209594075 |
| user output |
|---|
| 422229299 |
Test 8
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 10 12 |
| correct output |
|---|
| 811277399 |
| user output |
|---|
| 230182383 |
Test 9
Group: 2
Verdict: WRONG ANSWER
| input |
|---|
| 10 16 |
| correct output |
|---|
| 17275136 |
| user output |
|---|
| 902602227 |
Test 10
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 10 20 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |
Test 11
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 100 40 |
| correct output |
|---|
| 126883191 |
| user output |
|---|
| 566655250 |
Test 12
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 100 80 |
| correct output |
|---|
| 785497039 |
| user output |
|---|
| 976333804 |
Test 13
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 100 120 |
| correct output |
|---|
| 324216296 |
| user output |
|---|
| 603202933 |
Test 14
Group: 3
Verdict: WRONG ANSWER
| input |
|---|
| 100 160 |
| correct output |
|---|
| 895190039 |
| user output |
|---|
| 766990468 |
Test 15
Group: 3
Verdict: ACCEPTED
| input |
|---|
| 100 200 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |