#include <bits/stdc++.h>
uint64_t PRIME = 1000000007;
std::vector<std::pair<uint64_t, uint64_t>> schools;
//std::unordered_map<uint64_t, uint64_t> memo[500];
//uint64_t memo[500][1000000000];
std::vector<uint64_t> memo[500];
uint64_t count(int i, uint64_t min)
{
if (i >= schools.size())
return 1;
//auto mIt = memo[i].find(min);
//if (mIt != memo[i].end())
// return mIt->second;
if (memo[i][min] != 0)
return memo[i][min] - 1;
uint64_t c = count(i + 1, min);
for (uint64_t n = std::max(schools[i].first, min == 0 ? 0 : (min + 1)); n <= schools[i].second; n++)
{
c = (c + count(i + 1, n)) % PRIME;
}
//memo[i].insert(std::make_pair(min, c));
memo[i][min] = c + 1;
return c;
}
int main()
{
int N;
std::cin >> N;
uint64_t max2 = 0;
schools.resize(N);
for (int i = 0; i < N; i++)
{
std::cin >> schools[i].first;
std::cin >> schools[i].second;
max2 = std::max(max2, schools[i].second);
}
for (int i = 0; i < N; i++)
{
memo[i].resize(max2 + 1);
}
std::cout << (count(0, 0) - 1) << std::endl;
}
Compilation message
boat.cpp: In function 'uint64_t count(int, uint64_t)':
boat.cpp:14:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (i >= schools.size())
~~^~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
6 ms |
632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
6 ms |
632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
5 ms |
756 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
6 ms |
632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
2 |
Halted |
0 ms |
0 KB |
- |