#include<bits/stdc++.h>
using namespace std;
long long bruh[100001][400];
const long long MOD = 1e9+7;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
long long n,a,b;
cin >> n;
vector<pair<long long,long long>> haha(n+1);
for(long long i = 0; i < n; i++) {
cin >> a >> b;
haha[i] = {a,b};
}
reverse(haha.begin(),haha.end());
vector<long long> dp(n+1,1);
dp[0] = 0;
for(long long i = 0; i < 400; i++) {
bruh[0][i] = 0;
}
for(long long i = 1; i <= n; i++) {
a = haha[i].first;
b = haha[i].second;
if(a*a <= n) {
if(i > a) {
dp[i]+=bruh[i-a][a];
dp[i]%=MOD;
}
if(i > a*(b+1)) {
dp[i]-=bruh[i-a*(b+1)][a];
dp[i]+=MOD;
dp[i]%=MOD;
}
}
else {
for(long long j = i-a; j >= max(0LL,i-a*b); j-=a) {
dp[i]+=dp[j];
dp[i]%=MOD;
}
}
for(long long j = 1; j*j <= n; j++) {
if(j <= i) {
bruh[i][j] = (bruh[i-j][j]+dp[i])%MOD;
}
else {
bruh[i][j] = dp[i];
}
}
}
cout << dp[n];
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
5 ms |
27484 KB |
Output is correct |
21 |
Correct |
2 ms |
10844 KB |
Output is correct |
22 |
Correct |
6 ms |
33676 KB |
Output is correct |
23 |
Correct |
4 ms |
21336 KB |
Output is correct |
24 |
Correct |
3 ms |
14936 KB |
Output is correct |
25 |
Correct |
5 ms |
29528 KB |
Output is correct |
26 |
Correct |
3 ms |
14940 KB |
Output is correct |
27 |
Correct |
5 ms |
27472 KB |
Output is correct |
28 |
Correct |
7 ms |
33624 KB |
Output is correct |
29 |
Correct |
7 ms |
33880 KB |
Output is correct |
30 |
Correct |
6 ms |
33772 KB |
Output is correct |
31 |
Correct |
10 ms |
31960 KB |
Output is correct |
32 |
Correct |
7 ms |
33752 KB |
Output is correct |
33 |
Correct |
6 ms |
33624 KB |
Output is correct |
34 |
Correct |
6 ms |
33760 KB |
Output is correct |
35 |
Correct |
6 ms |
33628 KB |
Output is correct |
36 |
Correct |
5 ms |
33628 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
5 ms |
21084 KB |
Output is correct |
3 |
Correct |
2 ms |
14940 KB |
Output is correct |
4 |
Correct |
6 ms |
27484 KB |
Output is correct |
5 |
Correct |
76 ms |
244428 KB |
Output is correct |
6 |
Correct |
91 ms |
315728 KB |
Output is correct |
7 |
Correct |
92 ms |
315736 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
1 ms |
348 KB |
Output is correct |
11 |
Correct |
7 ms |
33624 KB |
Output is correct |
12 |
Correct |
90 ms |
315748 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
6 ms |
33628 KB |
Output is correct |
15 |
Correct |
90 ms |
315800 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
43 ms |
153444 KB |
Output is correct |
2 |
Correct |
28 ms |
126548 KB |
Output is correct |
3 |
Correct |
92 ms |
315728 KB |
Output is correct |
4 |
Correct |
61 ms |
227864 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
6 ms |
33668 KB |
Output is correct |
8 |
Correct |
94 ms |
315732 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
600 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
1 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
5 ms |
27484 KB |
Output is correct |
21 |
Correct |
2 ms |
10844 KB |
Output is correct |
22 |
Correct |
6 ms |
33676 KB |
Output is correct |
23 |
Correct |
4 ms |
21336 KB |
Output is correct |
24 |
Correct |
3 ms |
14936 KB |
Output is correct |
25 |
Correct |
5 ms |
29528 KB |
Output is correct |
26 |
Correct |
3 ms |
14940 KB |
Output is correct |
27 |
Correct |
5 ms |
27472 KB |
Output is correct |
28 |
Correct |
7 ms |
33624 KB |
Output is correct |
29 |
Correct |
7 ms |
33880 KB |
Output is correct |
30 |
Correct |
6 ms |
33772 KB |
Output is correct |
31 |
Correct |
10 ms |
31960 KB |
Output is correct |
32 |
Correct |
7 ms |
33752 KB |
Output is correct |
33 |
Correct |
6 ms |
33624 KB |
Output is correct |
34 |
Correct |
6 ms |
33760 KB |
Output is correct |
35 |
Correct |
6 ms |
33628 KB |
Output is correct |
36 |
Correct |
5 ms |
33628 KB |
Output is correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
5 ms |
21084 KB |
Output is correct |
39 |
Correct |
2 ms |
14940 KB |
Output is correct |
40 |
Correct |
6 ms |
27484 KB |
Output is correct |
41 |
Correct |
76 ms |
244428 KB |
Output is correct |
42 |
Correct |
91 ms |
315728 KB |
Output is correct |
43 |
Correct |
92 ms |
315736 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
0 ms |
348 KB |
Output is correct |
46 |
Correct |
1 ms |
348 KB |
Output is correct |
47 |
Correct |
7 ms |
33624 KB |
Output is correct |
48 |
Correct |
90 ms |
315748 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
6 ms |
33628 KB |
Output is correct |
51 |
Correct |
90 ms |
315800 KB |
Output is correct |
52 |
Correct |
43 ms |
153444 KB |
Output is correct |
53 |
Correct |
28 ms |
126548 KB |
Output is correct |
54 |
Correct |
92 ms |
315728 KB |
Output is correct |
55 |
Correct |
61 ms |
227864 KB |
Output is correct |
56 |
Correct |
0 ms |
344 KB |
Output is correct |
57 |
Correct |
0 ms |
348 KB |
Output is correct |
58 |
Correct |
6 ms |
33668 KB |
Output is correct |
59 |
Correct |
94 ms |
315732 KB |
Output is correct |
60 |
Correct |
80 ms |
266324 KB |
Output is correct |
61 |
Correct |
85 ms |
316752 KB |
Output is correct |
62 |
Correct |
93 ms |
316396 KB |
Output is correct |
63 |
Correct |
90 ms |
316772 KB |
Output is correct |
64 |
Correct |
91 ms |
317804 KB |
Output is correct |
65 |
Correct |
118 ms |
317012 KB |
Output is correct |
66 |
Correct |
95 ms |
316852 KB |
Output is correct |
67 |
Correct |
106 ms |
317376 KB |
Output is correct |
68 |
Correct |
102 ms |
317008 KB |
Output is correct |
69 |
Correct |
105 ms |
316420 KB |
Output is correct |
70 |
Correct |
95 ms |
317008 KB |
Output is correct |
71 |
Correct |
96 ms |
316752 KB |
Output is correct |
72 |
Correct |
90 ms |
316756 KB |
Output is correct |