| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1028213 |
2024-07-19T15:19:05 Z |
Issa |
Fire (BOI24_fire) |
C++17 |
|
96 ms |
44852 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
#define ent "\n"
const int maxn = 1e6 + 100;
const ll INF = (ll)1e18 + 100;
const int inf = 1e9 + 100;
const int MOD = 1e9 + 7;
const int maxl = 20;
const int P = 31;
int n, m;
pii a[maxn];
int p[maxl][maxn];
void test(){
cin >> n >> m;
vector<pii> v;
for(int i = 1; i <= n; i++){
cin >> a[i].first >> a[i].second;
if(a[i].second < a[i].first) a[i].second += m;
}
sort(a + 1, a + n + 1);
for(int i = 1; i <= n; i++){
v.push_back({a[i].second, i});
}
sort(v.begin(), v.end());
int j = 0, mx = 0;
for(auto [x, i]: v){
while(j < n && a[j+1].first <= x){
j++; if(!mx || a[mx].second < a[j].second) mx = j;
}
p[0][i] = mx;
}
for(int k = 1; k < maxl; k++){
for(int i = 1; i <= n; i++){
p[k][i] = p[k-1][p[k-1][i]];
}
}
int ans = inf;
for(int i = 1; i <= n; i++){
int j = i, cnt = 0;
for(int k = maxl - 1; k >= 0; k--){
if(a[p[k][j]].second - a[i].first < m){
j = p[k][j]; cnt += (1<<k);
}
}
j = p[0][j]; cnt++;
if(a[j].second - a[i].first >= m){
ans = min(ans, cnt + 1);
}
}
if(ans == inf) ans = -1;
cout << ans;
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int t; t = 1;
while(t--) test();
cout << ent;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
24920 KB |
Output is correct |
| 2 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 3 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 4 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 5 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 6 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 7 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29140 KB |
Output is correct |
| 10 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29176 KB |
Output is correct |
| 12 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 13 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 15 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 17 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 18 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 19 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 20 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 21 |
Correct |
4 ms |
31064 KB |
Output is correct |
| 22 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 23 |
Correct |
3 ms |
31068 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
24920 KB |
Output is correct |
| 2 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 3 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 4 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 5 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 6 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 7 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29140 KB |
Output is correct |
| 10 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29176 KB |
Output is correct |
| 12 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 13 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 15 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 17 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 18 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 19 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 20 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 21 |
Correct |
4 ms |
31064 KB |
Output is correct |
| 22 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 23 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 24 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 25 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 26 |
Correct |
3 ms |
29276 KB |
Output is correct |
| 27 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 28 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 29 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 30 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 31 |
Correct |
2 ms |
21084 KB |
Output is correct |
| 32 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 33 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 34 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 35 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 36 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 37 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 38 |
Correct |
3 ms |
29196 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
24920 KB |
Output is correct |
| 2 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 3 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 4 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 5 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 6 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 7 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29140 KB |
Output is correct |
| 10 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29176 KB |
Output is correct |
| 12 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 13 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 15 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 17 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 18 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 19 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 20 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 21 |
Correct |
4 ms |
31064 KB |
Output is correct |
| 22 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 23 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 24 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 25 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 26 |
Correct |
3 ms |
29276 KB |
Output is correct |
| 27 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 28 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 29 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 30 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 31 |
Correct |
2 ms |
21084 KB |
Output is correct |
| 32 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 33 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 34 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 35 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 36 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 37 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 38 |
Correct |
3 ms |
29196 KB |
Output is correct |
| 39 |
Correct |
4 ms |
31576 KB |
Output is correct |
| 40 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 41 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 42 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 43 |
Correct |
5 ms |
29532 KB |
Output is correct |
| 44 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 45 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 46 |
Correct |
5 ms |
29532 KB |
Output is correct |
| 47 |
Correct |
4 ms |
29404 KB |
Output is correct |
| 48 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 49 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 50 |
Correct |
4 ms |
31324 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 2 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 3 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 4 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 5 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 6 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 7 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 10 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 12 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 13 |
Correct |
3 ms |
29184 KB |
Output is correct |
| 14 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 15 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 16 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 17 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 18 |
Correct |
4 ms |
29356 KB |
Output is correct |
| 19 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 20 |
Correct |
39 ms |
39708 KB |
Output is correct |
| 21 |
Correct |
68 ms |
42692 KB |
Output is correct |
| 22 |
Correct |
65 ms |
44852 KB |
Output is correct |
| 23 |
Correct |
58 ms |
41652 KB |
Output is correct |
| 24 |
Correct |
64 ms |
44620 KB |
Output is correct |
| 25 |
Correct |
67 ms |
41972 KB |
Output is correct |
| 26 |
Correct |
61 ms |
42696 KB |
Output is correct |
| 27 |
Correct |
59 ms |
42832 KB |
Output is correct |
| 28 |
Correct |
61 ms |
42696 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 2 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 3 |
Correct |
3 ms |
29136 KB |
Output is correct |
| 4 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 5 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 6 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 7 |
Correct |
3 ms |
29160 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29272 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 10 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 12 |
Correct |
4 ms |
29500 KB |
Output is correct |
| 13 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 14 |
Correct |
4 ms |
29348 KB |
Output is correct |
| 15 |
Correct |
38 ms |
39508 KB |
Output is correct |
| 16 |
Correct |
56 ms |
41672 KB |
Output is correct |
| 17 |
Correct |
60 ms |
41384 KB |
Output is correct |
| 18 |
Correct |
63 ms |
42680 KB |
Output is correct |
| 19 |
Correct |
63 ms |
37580 KB |
Output is correct |
| 20 |
Correct |
58 ms |
36664 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
24920 KB |
Output is correct |
| 2 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 3 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 4 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 5 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 6 |
Correct |
2 ms |
24924 KB |
Output is correct |
| 7 |
Correct |
2 ms |
25040 KB |
Output is correct |
| 8 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 9 |
Correct |
3 ms |
29140 KB |
Output is correct |
| 10 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 11 |
Correct |
3 ms |
29176 KB |
Output is correct |
| 12 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 13 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 14 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 15 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 16 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 17 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 18 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 19 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 20 |
Correct |
2 ms |
29020 KB |
Output is correct |
| 21 |
Correct |
4 ms |
31064 KB |
Output is correct |
| 22 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 23 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 24 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 25 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 26 |
Correct |
3 ms |
29276 KB |
Output is correct |
| 27 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 28 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 29 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 30 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 31 |
Correct |
2 ms |
21084 KB |
Output is correct |
| 32 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 33 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 34 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 35 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 36 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 37 |
Correct |
3 ms |
31068 KB |
Output is correct |
| 38 |
Correct |
3 ms |
29196 KB |
Output is correct |
| 39 |
Correct |
4 ms |
31576 KB |
Output is correct |
| 40 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 41 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 42 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 43 |
Correct |
5 ms |
29532 KB |
Output is correct |
| 44 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 45 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 46 |
Correct |
5 ms |
29532 KB |
Output is correct |
| 47 |
Correct |
4 ms |
29404 KB |
Output is correct |
| 48 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 49 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 50 |
Correct |
4 ms |
31324 KB |
Output is correct |
| 51 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 52 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 53 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 54 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 55 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 56 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 57 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 58 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 59 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 60 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 61 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 62 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 63 |
Correct |
3 ms |
29184 KB |
Output is correct |
| 64 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 65 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 66 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 67 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 68 |
Correct |
4 ms |
29356 KB |
Output is correct |
| 69 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 70 |
Correct |
39 ms |
39708 KB |
Output is correct |
| 71 |
Correct |
68 ms |
42692 KB |
Output is correct |
| 72 |
Correct |
65 ms |
44852 KB |
Output is correct |
| 73 |
Correct |
58 ms |
41652 KB |
Output is correct |
| 74 |
Correct |
64 ms |
44620 KB |
Output is correct |
| 75 |
Correct |
67 ms |
41972 KB |
Output is correct |
| 76 |
Correct |
61 ms |
42696 KB |
Output is correct |
| 77 |
Correct |
59 ms |
42832 KB |
Output is correct |
| 78 |
Correct |
61 ms |
42696 KB |
Output is correct |
| 79 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 80 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 81 |
Correct |
3 ms |
29136 KB |
Output is correct |
| 82 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 83 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 84 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 85 |
Correct |
3 ms |
29160 KB |
Output is correct |
| 86 |
Correct |
3 ms |
29272 KB |
Output is correct |
| 87 |
Correct |
3 ms |
29016 KB |
Output is correct |
| 88 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 89 |
Correct |
3 ms |
29020 KB |
Output is correct |
| 90 |
Correct |
4 ms |
29500 KB |
Output is correct |
| 91 |
Correct |
4 ms |
29532 KB |
Output is correct |
| 92 |
Correct |
4 ms |
29348 KB |
Output is correct |
| 93 |
Correct |
38 ms |
39508 KB |
Output is correct |
| 94 |
Correct |
56 ms |
41672 KB |
Output is correct |
| 95 |
Correct |
60 ms |
41384 KB |
Output is correct |
| 96 |
Correct |
63 ms |
42680 KB |
Output is correct |
| 97 |
Correct |
63 ms |
37580 KB |
Output is correct |
| 98 |
Correct |
58 ms |
36664 KB |
Output is correct |
| 99 |
Correct |
96 ms |
37552 KB |
Output is correct |
| 100 |
Correct |
68 ms |
38984 KB |
Output is correct |
| 101 |
Correct |
60 ms |
36808 KB |
Output is correct |
| 102 |
Correct |
91 ms |
37576 KB |
Output is correct |
| 103 |
Correct |
59 ms |
37716 KB |
Output is correct |
| 104 |
Correct |
65 ms |
37676 KB |
Output is correct |
| 105 |
Correct |
45 ms |
41396 KB |
Output is correct |
