#include "shortcut.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef pair<lint, lint> pi;
int n, c;
lint a[1000005], b[1000005];
struct seg1{
lint tree[1000005];
void init(){
fill(tree + 1, tree + n + 1, -1e18);
}
void upd(int x, lint v){
while(x <= n){
tree[x] = max(tree[x], v);
x += x & -x;
}
}
lint query(int x){
x = n;
lint ret = -1e18;
while(x){
ret = max(ret, tree[x]);
x -= x & -x;
}
return ret;
}
}seg1;
struct seg2{
lint tree[1000005];
void init(){
fill(tree + 1, tree + n + 1, 1e18);
}
void upd(int x, lint v){
while(x <= n){
tree[x] = min(tree[x], v);
x += x & -x;
}
}
lint query(int x){
x = n;
lint ret = 1e18;
while(x){
ret = min(ret, tree[x]);
x -= x & -x;
}
return ret;
}
}seg2;
vector<pi> v, w;
bool trial(lint x){
lint ps = -1e18, pe = 1e18, ms = -1e18, me = 1e18;
seg1.init();
seg2.init();
int p = 0;
for(int i=0; i<n; i++){
while(p < n && w[p].first + x < v[i].first){
seg1.upd(w[p].second + 1, a[w[p].second] + b[w[p].second]);
seg2.upd(w[p].second + 1, -a[w[p].second] + b[w[p].second]);
p++;
}
ps = max(ps, seg1.query(v[i].second) - x + c + b[v[i].second] + a[v[i].second]);
pe = min(pe, seg2.query(v[i].second) + x - c + b[v[i].second] - a[v[i].second]);
ms = max(ms, seg1.query(v[i].second) - x + c - b[v[i].second] + a[v[i].second]);
me = min(me, seg2.query(v[i].second) + x - c - b[v[i].second] - a[v[i].second]);
}
for(int i=0; i<n; i++){
lint s = max(ps - b[i], b[i] - me);
lint e = min(pe - b[i], b[i] - ms);
if(s <= e && upper_bound(b, b+n, e) != lower_bound(b, b+n, s)) return true;
}
return false;
}
long long find_shortcut(int n, std::vector<int> l, std::vector<int> d, int c)
{
::n = n;
::c = c;
for(int i=0; i<n; i++){
a[i] = d[i];
if(i >= 1) b[i] = b[i-1] + l[i-1];
}
for(int i=0; i<n; i++) v.push_back(pi(a[i] + b[i], i));
for(int i=0; i<n; i++) w.push_back(pi(-a[i] + b[i], i));
sort(v.begin(), v.end());
sort(w.begin(), w.end());
lint s = 0, e = 1e16;
while(s != e){
lint m = (s+e)/2;
if(trial(m)) e = m;
else s = m+1;
}
return s;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
33272 KB |
n = 4, 80 is a correct answer |
2 |
Correct |
0 ms |
33272 KB |
n = 9, 110 is a correct answer |
3 |
Correct |
0 ms |
33272 KB |
n = 4, 21 is a correct answer |
4 |
Correct |
0 ms |
33272 KB |
n = 3, 4 is a correct answer |
5 |
Incorrect |
0 ms |
33272 KB |
n = 2, incorrect answer: jury 62 vs contestant 72 |
6 |
Halted |
0 ms |
0 KB |
- |