| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 699440 |
2023-02-17T00:05:30 Z |
aelf2k23 |
초음속철도 (OJUZ11_rail) |
C++14 |
|
3000 ms |
7660 KB |
#include<bits/stdc++.h>
#define int long long
#define ll long long
#define fr first
#define sc second
#define all(s) s.begin(), s.end()
using namespace std;
const int nmax = 400005;
const int mod = 1e9 + 7;
int n, m, dp[nmax];
pair<int,int> a[nmax];
vector<int>vecc;
int32_t main(){
cin >> n >> m;
for(int i=1;i<=m;i++){
cin >> a[i].fr >> a[i].sc;
swap(a[i].fr, a[i].sc);
vecc.push_back(a[i].fr);
vecc.push_back(a[i].sc);
}
sort(all(vecc));
vecc.resize(unique(all(vecc)) - vecc.begin());
for(int i=1;i<=m;i++){
a[i].fr = lower_bound(all(vecc), a[i].fr) - vecc.begin();
a[i].sc = lower_bound(all(vecc), a[i].sc) - vecc.begin();
}
sort(a + 1, a + m + 1);
for(int i=1;i<=m;i++){
swap(a[i].fr, a[i].sc);
}
int n = vecc.size() - 1;
dp[0] = 1;
for(int i=1;i<=m;i++){
for(int j=0;j<a[i].fr;j++){
dp[j] = dp[j] * 2LL % mod;
}
for(int j=a[i].sc;j>=a[i].fr;j--){
dp[a[i].sc] = (dp[a[i].sc] + dp[j]) % mod;
}
}
cout << dp[n] << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
1 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 4 |
Correct |
17 ms |
608 KB |
Output is correct |
| 5 |
Execution timed out |
3069 ms |
7168 KB |
Time limit exceeded |
| 6 |
Execution timed out |
3085 ms |
7468 KB |
Time limit exceeded |
| 7 |
Execution timed out |
3071 ms |
7388 KB |
Time limit exceeded |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Execution timed out |
3092 ms |
6972 KB |
Time limit exceeded |
| 10 |
Execution timed out |
3059 ms |
7144 KB |
Time limit exceeded |
| 11 |
Execution timed out |
3082 ms |
4488 KB |
Time limit exceeded |
| 12 |
Execution timed out |
3072 ms |
7432 KB |
Time limit exceeded |
| 13 |
Execution timed out |
3083 ms |
7348 KB |
Time limit exceeded |
| 14 |
Correct |
128 ms |
6592 KB |
Output is correct |
| 15 |
Execution timed out |
3088 ms |
7116 KB |
Time limit exceeded |
| 16 |
Correct |
144 ms |
6756 KB |
Output is correct |
| 17 |
Execution timed out |
3089 ms |
7356 KB |
Time limit exceeded |
| 18 |
Execution timed out |
3096 ms |
7320 KB |
Time limit exceeded |
| 19 |
Execution timed out |
3067 ms |
7240 KB |
Time limit exceeded |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
1 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
99 ms |
768 KB |
Output is correct |
| 37 |
Correct |
66 ms |
540 KB |
Output is correct |
| 38 |
Correct |
25 ms |
528 KB |
Output is correct |
| 39 |
Correct |
2 ms |
596 KB |
Output is correct |
| 40 |
Correct |
24 ms |
624 KB |
Output is correct |
| 41 |
Correct |
77 ms |
644 KB |
Output is correct |
| 42 |
Correct |
97 ms |
660 KB |
Output is correct |
| 43 |
Correct |
0 ms |
212 KB |
Output is correct |
| 44 |
Correct |
74 ms |
632 KB |
Output is correct |
| 45 |
Correct |
5 ms |
596 KB |
Output is correct |
| 46 |
Correct |
70 ms |
596 KB |
Output is correct |
| 47 |
Correct |
52 ms |
628 KB |
Output is correct |
| 48 |
Correct |
51 ms |
596 KB |
Output is correct |
| 49 |
Correct |
5 ms |
608 KB |
Output is correct |
| 50 |
Correct |
5 ms |
596 KB |
Output is correct |
| 51 |
Correct |
5 ms |
492 KB |
Output is correct |
| 52 |
Correct |
5 ms |
340 KB |
Output is correct |
| 53 |
Correct |
80 ms |
644 KB |
Output is correct |
| 54 |
Correct |
21 ms |
468 KB |
Output is correct |
| 55 |
Correct |
97 ms |
640 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
1 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
1 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
0 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
1 ms |
212 KB |
Output is correct |
| 25 |
Correct |
0 ms |
212 KB |
Output is correct |
| 26 |
Correct |
0 ms |
212 KB |
Output is correct |
| 27 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
0 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
0 ms |
212 KB |
Output is correct |
| 36 |
Correct |
1 ms |
212 KB |
Output is correct |
| 37 |
Correct |
0 ms |
212 KB |
Output is correct |
| 38 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 39 |
Correct |
17 ms |
608 KB |
Output is correct |
| 40 |
Execution timed out |
3069 ms |
7168 KB |
Time limit exceeded |
| 41 |
Execution timed out |
3085 ms |
7468 KB |
Time limit exceeded |
| 42 |
Execution timed out |
3071 ms |
7388 KB |
Time limit exceeded |
| 43 |
Correct |
0 ms |
212 KB |
Output is correct |
| 44 |
Execution timed out |
3092 ms |
6972 KB |
Time limit exceeded |
| 45 |
Execution timed out |
3059 ms |
7144 KB |
Time limit exceeded |
| 46 |
Execution timed out |
3082 ms |
4488 KB |
Time limit exceeded |
| 47 |
Execution timed out |
3072 ms |
7432 KB |
Time limit exceeded |
| 48 |
Execution timed out |
3083 ms |
7348 KB |
Time limit exceeded |
| 49 |
Correct |
128 ms |
6592 KB |
Output is correct |
| 50 |
Execution timed out |
3088 ms |
7116 KB |
Time limit exceeded |
| 51 |
Correct |
144 ms |
6756 KB |
Output is correct |
| 52 |
Execution timed out |
3089 ms |
7356 KB |
Time limit exceeded |
| 53 |
Execution timed out |
3096 ms |
7320 KB |
Time limit exceeded |
| 54 |
Execution timed out |
3067 ms |
7240 KB |
Time limit exceeded |
| 55 |
Correct |
99 ms |
768 KB |
Output is correct |
| 56 |
Correct |
66 ms |
540 KB |
Output is correct |
| 57 |
Correct |
25 ms |
528 KB |
Output is correct |
| 58 |
Correct |
2 ms |
596 KB |
Output is correct |
| 59 |
Correct |
24 ms |
624 KB |
Output is correct |
| 60 |
Correct |
77 ms |
644 KB |
Output is correct |
| 61 |
Correct |
97 ms |
660 KB |
Output is correct |
| 62 |
Correct |
0 ms |
212 KB |
Output is correct |
| 63 |
Correct |
74 ms |
632 KB |
Output is correct |
| 64 |
Correct |
5 ms |
596 KB |
Output is correct |
| 65 |
Correct |
70 ms |
596 KB |
Output is correct |
| 66 |
Correct |
52 ms |
628 KB |
Output is correct |
| 67 |
Correct |
51 ms |
596 KB |
Output is correct |
| 68 |
Correct |
5 ms |
608 KB |
Output is correct |
| 69 |
Correct |
5 ms |
596 KB |
Output is correct |
| 70 |
Correct |
5 ms |
492 KB |
Output is correct |
| 71 |
Correct |
5 ms |
340 KB |
Output is correct |
| 72 |
Correct |
80 ms |
644 KB |
Output is correct |
| 73 |
Correct |
21 ms |
468 KB |
Output is correct |
| 74 |
Correct |
97 ms |
640 KB |
Output is correct |
| 75 |
Execution timed out |
3079 ms |
7584 KB |
Time limit exceeded |
| 76 |
Execution timed out |
3080 ms |
5288 KB |
Time limit exceeded |
| 77 |
Correct |
1161 ms |
6484 KB |
Output is correct |
| 78 |
Correct |
92 ms |
6612 KB |
Output is correct |
| 79 |
Execution timed out |
3093 ms |
7152 KB |
Time limit exceeded |
| 80 |
Execution timed out |
3100 ms |
7476 KB |
Time limit exceeded |
| 81 |
Correct |
43 ms |
612 KB |
Output is correct |
| 82 |
Execution timed out |
3099 ms |
7136 KB |
Time limit exceeded |
| 83 |
Correct |
121 ms |
6828 KB |
Output is correct |
| 84 |
Execution timed out |
3090 ms |
7392 KB |
Time limit exceeded |
| 85 |
Execution timed out |
3047 ms |
7344 KB |
Time limit exceeded |
| 86 |
Execution timed out |
3074 ms |
7252 KB |
Time limit exceeded |
| 87 |
Correct |
199 ms |
6608 KB |
Output is correct |
| 88 |
Correct |
182 ms |
6652 KB |
Output is correct |
| 89 |
Execution timed out |
3097 ms |
7468 KB |
Time limit exceeded |
| 90 |
Execution timed out |
3079 ms |
7564 KB |
Time limit exceeded |
| 91 |
Execution timed out |
3088 ms |
7640 KB |
Time limit exceeded |
| 92 |
Execution timed out |
3094 ms |
7536 KB |
Time limit exceeded |
| 93 |
Execution timed out |
3085 ms |
7628 KB |
Time limit exceeded |
| 94 |
Execution timed out |
3081 ms |
7488 KB |
Time limit exceeded |
| 95 |
Execution timed out |
3079 ms |
7660 KB |
Time limit exceeded |
