| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 967928 |
2024-04-23T05:31:18 Z |
duckindog |
Boat (APIO16_boat) |
C++17 |
|
2000 ms |
524288 KB |
#include <bits/stdc++.h>
using namespace std;
const int N = 500 + 10,
M = 1'000'000'000 + 7;
int n;
int a[N], b[N];
int f[2][1'000'000 + 10];
int32_t main() {
cin.tie(0)->sync_with_stdio(0);
cin >> n;
for (int i = 1; i <= n; ++i) cin >> a[i] >> b[i];
vector<int> rrh;
for (int i = 1; i <= n; ++i) {
for (int j = a[i]; j <= b[i]; ++j) rrh.push_back(j);
}
sort(rrh.begin(), rrh.end());
rrh.resize(unique(rrh.begin(), rrh.end()) - rrh.begin());
f[0][0] = 1;
for (int j = 1; j <= rrh.size(); ++j) f[0][j] = 1;
for (int i = 1; i <= n; ++i) {
int id = i & 1, p = id ^ 1;
for (int j = 0; j <= rrh.size(); ++j) f[id][j] = 0;
int it = lower_bound(rrh.begin(), rrh.end(), a[i]) - rrh.begin() + 1;
for (int j = 0; j <= rrh.size(); ++j) f[id][j] = f[p][j];
for (int j = it; j <= b[i] - a[i] + it; ++j) f[id][j] = (f[id][j] + f[p][j - 1]) % M;
for (int j = 1; j <= rrh.size(); ++j) {
f[id][j] = ((f[id][j - 1] - f[p][j - 1] + M) % M + f[id][j]) % M;
}
}
cout << f[n & 1][rrh.size()] - 1 << "\n";
}
Compilation message
boat.cpp: In function 'int32_t main()':
boat.cpp:26:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
26 | for (int j = 1; j <= rrh.size(); ++j) f[0][j] = 1;
| ~~^~~~~~~~~~~~~
boat.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
30 | for (int j = 0; j <= rrh.size(); ++j) f[id][j] = 0;
| ~~^~~~~~~~~~~~~
boat.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
34 | for (int j = 0; j <= rrh.size(); ++j) f[id][j] = f[p][j];
| ~~^~~~~~~~~~~~~
boat.cpp:36:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
36 | for (int j = 1; j <= rrh.size(); ++j) {
| ~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 13 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 13 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
56 ms |
6064 KB |
Output is correct |
| 22 |
Correct |
56 ms |
6352 KB |
Output is correct |
| 23 |
Correct |
55 ms |
6356 KB |
Output is correct |
| 24 |
Correct |
57 ms |
6076 KB |
Output is correct |
| 25 |
Correct |
58 ms |
6096 KB |
Output is correct |
| 26 |
Correct |
53 ms |
6336 KB |
Output is correct |
| 27 |
Correct |
53 ms |
6352 KB |
Output is correct |
| 28 |
Correct |
53 ms |
6608 KB |
Output is correct |
| 29 |
Correct |
53 ms |
6484 KB |
Output is correct |
| 30 |
Execution timed out |
2033 ms |
12228 KB |
Time limit exceeded |
| 31 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
390 ms |
524288 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
3 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
3 ms |
2524 KB |
Output is correct |
| 13 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
56 ms |
6064 KB |
Output is correct |
| 22 |
Correct |
56 ms |
6352 KB |
Output is correct |
| 23 |
Correct |
55 ms |
6356 KB |
Output is correct |
| 24 |
Correct |
57 ms |
6076 KB |
Output is correct |
| 25 |
Correct |
58 ms |
6096 KB |
Output is correct |
| 26 |
Correct |
53 ms |
6336 KB |
Output is correct |
| 27 |
Correct |
53 ms |
6352 KB |
Output is correct |
| 28 |
Correct |
53 ms |
6608 KB |
Output is correct |
| 29 |
Correct |
53 ms |
6484 KB |
Output is correct |
| 30 |
Execution timed out |
2033 ms |
12228 KB |
Time limit exceeded |
| 31 |
Halted |
0 ms |
0 KB |
- |
