| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 139553 |
2019-08-01T02:12:44 Z |
meatrow |
Boat (APIO16_boat) |
C++17 |
|
4 ms |
504 KB |
//#pragma GCC optimize("O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,tune=native")
//#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
const int mod = 1e9 + 7;
const int N = 1500;
int dp[N];
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int n;
cin >> n;
vector<pair<int, int>> a(n);
set<int> pnts;
for (int i = 0; i < n; i++) {
cin >> a[i].first >> a[i].second;
pnts.insert(a[i].first);
pnts.insert(a[i].first - 1);
pnts.insert(a[i].second);
}
size_t m = pnts.size();
vector<int> b(m);
auto it = pnts.begin();
for (int& i : b) {
i = *(it++);
}
fill(dp, dp + m, 1);
for (int i = 0; i < n; i++) {
int len = a[i].second - a[i].first;
int a0 = 0;
ll d = 0;
for (int j = 0; j < m; j++) {
int pos = b[j];
if (pos == a[i].first - 1) {
a0 = dp[j];
}
if (pos == a[i].first) {
d = dp[j];
}
if (pos >= a[i].first ) {
dp[j] += a0 + d * min(pos - a[i].first, len);
dp[j] %= mod;
}
}
}
cout << dp[m - 1] - 1;
return 0;
}
Compilation message
boat.cpp: In function 'int main()':
boat.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = 0; j < m; j++) {
~~^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
4 ms |
376 KB |
Output is correct |
| 3 |
Correct |
4 ms |
380 KB |
Output is correct |
| 4 |
Correct |
4 ms |
376 KB |
Output is correct |
| 5 |
Correct |
4 ms |
376 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
376 KB |
Output is correct |
| 8 |
Correct |
3 ms |
380 KB |
Output is correct |
| 9 |
Correct |
4 ms |
376 KB |
Output is correct |
| 10 |
Correct |
3 ms |
376 KB |
Output is correct |
| 11 |
Correct |
4 ms |
376 KB |
Output is correct |
| 12 |
Correct |
4 ms |
376 KB |
Output is correct |
| 13 |
Correct |
4 ms |
376 KB |
Output is correct |
| 14 |
Correct |
4 ms |
376 KB |
Output is correct |
| 15 |
Correct |
4 ms |
376 KB |
Output is correct |
| 16 |
Correct |
3 ms |
376 KB |
Output is correct |
| 17 |
Correct |
3 ms |
376 KB |
Output is correct |
| 18 |
Correct |
3 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
3 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
4 ms |
376 KB |
Output is correct |
| 3 |
Correct |
4 ms |
380 KB |
Output is correct |
| 4 |
Correct |
4 ms |
376 KB |
Output is correct |
| 5 |
Correct |
4 ms |
376 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
376 KB |
Output is correct |
| 8 |
Correct |
3 ms |
380 KB |
Output is correct |
| 9 |
Correct |
4 ms |
376 KB |
Output is correct |
| 10 |
Correct |
3 ms |
376 KB |
Output is correct |
| 11 |
Correct |
4 ms |
376 KB |
Output is correct |
| 12 |
Correct |
4 ms |
376 KB |
Output is correct |
| 13 |
Correct |
4 ms |
376 KB |
Output is correct |
| 14 |
Correct |
4 ms |
376 KB |
Output is correct |
| 15 |
Correct |
4 ms |
376 KB |
Output is correct |
| 16 |
Correct |
3 ms |
376 KB |
Output is correct |
| 17 |
Correct |
3 ms |
376 KB |
Output is correct |
| 18 |
Correct |
3 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
3 ms |
376 KB |
Output is correct |
| 21 |
Incorrect |
4 ms |
504 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
4 ms |
376 KB |
Output is correct |
| 3 |
Correct |
4 ms |
380 KB |
Output is correct |
| 4 |
Correct |
4 ms |
376 KB |
Output is correct |
| 5 |
Correct |
4 ms |
376 KB |
Output is correct |
| 6 |
Correct |
4 ms |
384 KB |
Output is correct |
| 7 |
Correct |
4 ms |
376 KB |
Output is correct |
| 8 |
Correct |
3 ms |
380 KB |
Output is correct |
| 9 |
Correct |
4 ms |
376 KB |
Output is correct |
| 10 |
Correct |
3 ms |
376 KB |
Output is correct |
| 11 |
Correct |
4 ms |
376 KB |
Output is correct |
| 12 |
Correct |
4 ms |
376 KB |
Output is correct |
| 13 |
Correct |
4 ms |
376 KB |
Output is correct |
| 14 |
Correct |
4 ms |
376 KB |
Output is correct |
| 15 |
Correct |
4 ms |
376 KB |
Output is correct |
| 16 |
Correct |
3 ms |
376 KB |
Output is correct |
| 17 |
Correct |
3 ms |
376 KB |
Output is correct |
| 18 |
Correct |
3 ms |
376 KB |
Output is correct |
| 19 |
Correct |
3 ms |
376 KB |
Output is correct |
| 20 |
Correct |
3 ms |
376 KB |
Output is correct |
| 21 |
Incorrect |
4 ms |
504 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
