#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define int long long
const int N = 2e5 + 69;
const int A = 4010;
const int inf = 1e9;
vector<vector<int>> st(A, vector<int>(4 * A, inf));
int n, a[N], b[N], c[N], d[A][A], mn[A][A];
int gmx[A][A], gmn[A][A];
void Modify(int v, int tl, int tr, int r, int p, int x) {
if (tl == tr)
st[r][v] = min(st[r][v], x);
else {
int mid = (tl + tr) / 2;
if (p <= mid)
Modify(v * 2, tl, mid, r, p, x);
else
Modify(v * 2 + 1, mid + 1, tr, r, p, x);
st[r][v] = min(st[r][v * 2], st[r][v * 2 + 1]);
}
}
int Get(int v, int tl, int tr, int L, int R, int r, int x) {
if (tl > R || tr < L)
return inf;
else if (tl == tr)
return tl;
else {
int mid = (tl + tr) / 2;
if (st[r][v * 2 + 1] < x)
return Get(v * 2 + 1, mid + 1, tr, L, R, r, x);
else
return Get(v * 2, tl, mid, L, R, r, x);
}
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int tt = 1;
//cin >> tt;
while (tt--) {
cin >> n;
for (int i = 1;i <= n;i++)
cin >> a[i] >> b[i] >> c[i];
for (int i = 0;i < A;i++) {
for (int j = 0;j < A;j++) {
gmn[i][j] = inf;
gmx[i][j] = -inf;
d[i][j] = -inf;
mn[i][j] = inf;
}
}
for (int i = 1;i <= n;i++) {
gmx[a[i]][b[i]] = max(c[i], gmx[a[i]][b[i]]);
gmn[a[i]][b[i]] = min(c[i], gmn[a[i]][b[i]]);
Modify(1, 1, A, a[i], b[i], c[i]);
}
for (int i = 1;i < A;i++) {
for (int j = 1;j < A;j++)
d[i][j] = max({d[i][j - 1], d[i - 1][j], gmx[i][j]});
}
int ans = -1;
for (int i = 1;i <= n;i++) {
for (int j = a[i] - 1;j >= 1;j--) {
int y = Get(1, 1, A, b[i] + 1, A, j, d[j][b[i]]);
if (y != inf && gmn[j][y] < d[j][b[i]]) {
ans = max(ans, a[i] + y + d[j][b[i]]);
}
}
}
cout << ans << '\n';
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
456 ms |
1011120 KB |
Output is correct |
2 |
Correct |
348 ms |
1011024 KB |
Output is correct |
3 |
Correct |
346 ms |
1011128 KB |
Output is correct |
4 |
Correct |
356 ms |
1011284 KB |
Output is correct |
5 |
Correct |
347 ms |
1011028 KB |
Output is correct |
6 |
Correct |
352 ms |
1011276 KB |
Output is correct |
7 |
Correct |
347 ms |
1011024 KB |
Output is correct |
8 |
Correct |
352 ms |
1011224 KB |
Output is correct |
9 |
Correct |
360 ms |
1011028 KB |
Output is correct |
10 |
Correct |
354 ms |
1011248 KB |
Output is correct |
11 |
Correct |
372 ms |
1011024 KB |
Output is correct |
12 |
Correct |
367 ms |
1011024 KB |
Output is correct |
13 |
Correct |
445 ms |
1011392 KB |
Output is correct |
14 |
Execution timed out |
2614 ms |
1048580 KB |
Time limit exceeded |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
456 ms |
1011120 KB |
Output is correct |
2 |
Correct |
348 ms |
1011024 KB |
Output is correct |
3 |
Correct |
346 ms |
1011128 KB |
Output is correct |
4 |
Correct |
356 ms |
1011284 KB |
Output is correct |
5 |
Correct |
347 ms |
1011028 KB |
Output is correct |
6 |
Correct |
352 ms |
1011276 KB |
Output is correct |
7 |
Correct |
347 ms |
1011024 KB |
Output is correct |
8 |
Correct |
352 ms |
1011224 KB |
Output is correct |
9 |
Correct |
360 ms |
1011028 KB |
Output is correct |
10 |
Correct |
354 ms |
1011248 KB |
Output is correct |
11 |
Correct |
372 ms |
1011024 KB |
Output is correct |
12 |
Correct |
367 ms |
1011024 KB |
Output is correct |
13 |
Correct |
445 ms |
1011392 KB |
Output is correct |
14 |
Execution timed out |
2614 ms |
1048580 KB |
Time limit exceeded |
15 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
426 ms |
1011188 KB |
Output is correct |
2 |
Correct |
351 ms |
1011316 KB |
Output is correct |
3 |
Correct |
354 ms |
1011028 KB |
Output is correct |
4 |
Correct |
351 ms |
1011028 KB |
Output is correct |
5 |
Correct |
375 ms |
1011284 KB |
Output is correct |
6 |
Correct |
363 ms |
1011028 KB |
Output is correct |
7 |
Correct |
353 ms |
1011136 KB |
Output is correct |
8 |
Correct |
350 ms |
1011024 KB |
Output is correct |
9 |
Correct |
347 ms |
1011024 KB |
Output is correct |
10 |
Correct |
349 ms |
1011028 KB |
Output is correct |
11 |
Correct |
381 ms |
1012816 KB |
Output is correct |
12 |
Incorrect |
368 ms |
1011972 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
426 ms |
1011188 KB |
Output is correct |
2 |
Correct |
351 ms |
1011316 KB |
Output is correct |
3 |
Correct |
354 ms |
1011028 KB |
Output is correct |
4 |
Correct |
351 ms |
1011028 KB |
Output is correct |
5 |
Correct |
375 ms |
1011284 KB |
Output is correct |
6 |
Correct |
363 ms |
1011028 KB |
Output is correct |
7 |
Correct |
353 ms |
1011136 KB |
Output is correct |
8 |
Correct |
350 ms |
1011024 KB |
Output is correct |
9 |
Correct |
347 ms |
1011024 KB |
Output is correct |
10 |
Correct |
349 ms |
1011028 KB |
Output is correct |
11 |
Correct |
381 ms |
1012816 KB |
Output is correct |
12 |
Incorrect |
368 ms |
1011972 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
426 ms |
1011188 KB |
Output is correct |
2 |
Correct |
351 ms |
1011316 KB |
Output is correct |
3 |
Correct |
354 ms |
1011028 KB |
Output is correct |
4 |
Correct |
351 ms |
1011028 KB |
Output is correct |
5 |
Correct |
375 ms |
1011284 KB |
Output is correct |
6 |
Correct |
363 ms |
1011028 KB |
Output is correct |
7 |
Correct |
353 ms |
1011136 KB |
Output is correct |
8 |
Correct |
350 ms |
1011024 KB |
Output is correct |
9 |
Correct |
347 ms |
1011024 KB |
Output is correct |
10 |
Correct |
349 ms |
1011028 KB |
Output is correct |
11 |
Correct |
381 ms |
1012816 KB |
Output is correct |
12 |
Incorrect |
368 ms |
1011972 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
426 ms |
1011188 KB |
Output is correct |
2 |
Correct |
351 ms |
1011316 KB |
Output is correct |
3 |
Correct |
354 ms |
1011028 KB |
Output is correct |
4 |
Correct |
351 ms |
1011028 KB |
Output is correct |
5 |
Correct |
375 ms |
1011284 KB |
Output is correct |
6 |
Correct |
363 ms |
1011028 KB |
Output is correct |
7 |
Correct |
353 ms |
1011136 KB |
Output is correct |
8 |
Correct |
350 ms |
1011024 KB |
Output is correct |
9 |
Correct |
347 ms |
1011024 KB |
Output is correct |
10 |
Correct |
349 ms |
1011028 KB |
Output is correct |
11 |
Correct |
381 ms |
1012816 KB |
Output is correct |
12 |
Incorrect |
368 ms |
1011972 KB |
Output isn't correct |
13 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
456 ms |
1011120 KB |
Output is correct |
2 |
Correct |
348 ms |
1011024 KB |
Output is correct |
3 |
Correct |
346 ms |
1011128 KB |
Output is correct |
4 |
Correct |
356 ms |
1011284 KB |
Output is correct |
5 |
Correct |
347 ms |
1011028 KB |
Output is correct |
6 |
Correct |
352 ms |
1011276 KB |
Output is correct |
7 |
Correct |
347 ms |
1011024 KB |
Output is correct |
8 |
Correct |
352 ms |
1011224 KB |
Output is correct |
9 |
Correct |
360 ms |
1011028 KB |
Output is correct |
10 |
Correct |
354 ms |
1011248 KB |
Output is correct |
11 |
Correct |
372 ms |
1011024 KB |
Output is correct |
12 |
Correct |
367 ms |
1011024 KB |
Output is correct |
13 |
Correct |
445 ms |
1011392 KB |
Output is correct |
14 |
Execution timed out |
2614 ms |
1048580 KB |
Time limit exceeded |
15 |
Halted |
0 ms |
0 KB |
- |