| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 442361 |
2021-07-07T14:30:54 Z |
aryan12 |
Spiral (BOI16_spiral) |
C++17 |
|
132 ms |
262148 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());
const int MOD = 1e9 + 7;
void Solve() {
int n;
cin >> n;
int a[2 * n + 2][2 * n + 2];
a[n][n] = 1;
int k = 2;
for(int i = 1; i <= n; i++) {
for(int x = n + i, y = n - i + 1; y < n + i + 1; y++) {
a[x][y] = k++;
}
for(int x = n + i - 1, y = n + i; x > n - i - 1; x--) {
a[x][y] = k++;
}
for(int x = n - i, y = n + i - 1; y > n - i - 1; y--) {
a[x][y] = k++;
}
for(int x = n - i + 1, y = n - i; x < n + i + 1; x++) {
a[x][y] = k++;
}
}
/*for(int i = 0; i < 2 * n + 1; i++) {
for(int j = 0; j < 2 * n + 1; j++) {
cout << a[i][j] << " ";
}
cout << "\n";
}*/
int pref[2 * n + 2][2 * n + 2];
for(int i = 0; i < 2 * n + 2; i++) {
for(int j = 0; j < 2 * n + 2; j++) {
pref[i][j] = 0;
}
}
for(int i = 1; i < 2 * n + 2; i++) {
for(int j = 1; j < 2 * n + 2; j++) {
pref[i][j] = pref[i - 1][j] + pref[i][j - 1] - pref[i - 1][j - 1] + a[i - 1][j - 1];
pref[i][j] += 10 * MOD;
pref[i][j] %= MOD;
}
}
int q;
cin >> q;
while(q--) {
int x1, y1, x2, y2;
cin >> x1 >> y1 >> x2 >> y2;
x1 += n + 1, y1 += n + 1;
x2 += n + 1, y2 += n + 1;
cout << ((pref[x2][y2] - pref[x2][y1 - 1] - pref[x1 - 1][y2] + pref[x1 - 1][y1 - 1]) + 10 * MOD) % MOD << "\n";
}
}
int32_t main() {
auto begin = std::chrono::high_resolution_clock::now();
ios_base::sync_with_stdio(0);
cin.tie(0);
int t = 1;
//cin >> t;
while(t--) {
Solve();
}
auto end = std::chrono::high_resolution_clock::now();
auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
93 ms |
63020 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
132 ms |
262148 KB |
Execution killed with signal 9 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
93 ms |
63020 KB |
Output is correct |
| 2 |
Runtime error |
128 ms |
262148 KB |
Execution killed with signal 9 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
119 ms |
262148 KB |
Execution killed with signal 9 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
93 ms |
63020 KB |
Output is correct |
| 2 |
Runtime error |
132 ms |
262148 KB |
Execution killed with signal 9 |
