| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1102520 |
2024-10-18T08:24:37 Z |
NotLinux |
Snowball (JOI21_ho_t2) |
C++17 |
|
2 ms |
684 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
const int inf = 1e18 + 7;
void solve(){
int n,q;
cin >> n >> q;
int arr[n];
for(int i = 0;i<n;i++)cin >> arr[i];
int query[q] , sum = 0 , premin[q] , premax[q];
for(int i = 0;i<q;i++){
cin >> query[i];
}
// cout << "arr : ";for(int i = 0;i<n;i++)cout << arr[i] << " ";cout << endl;
// cout << "query : ";for(int i = 0;i<q;i++)cout << query[i] << " ";cout << endl;
map < int , int > mpa;// first time reaching sum
for(int i = 0;i<q;i++){
sum += query[i];
premin[i] = min(i == 0 ? 0 : premin[i-1] , sum);
premax[i] = max(i == 0 ? 0 : premax[i-1] , sum);
if(mpa.count(sum) == 0){
mpa[sum] = i;
}
}
// cout << "premax : ";for(int i = 0;i<q;i++)cout << premax[i] << " ";cout << endl;
// cout << "premin : ";for(int i = 0;i<q;i++)cout << premin[i] << " ";cout << endl;
int ans[n] = {0};
ans[0] += abs(premin[q-1]);
ans[n-1] += premax[q-1];
for(int i = 0;i<n-1;i++){
// cout << " i : " << i << " , " << arr[i] << " " << arr[i+1] << endl;
int l = 0 , r = q;
while(l < r){
int mid = (l + r) / 2;
// cout << mid << " : " << arr[i] + premax[mid] << " , " << arr[i+1] + premin[mid] << endl;
if((arr[i] + premax[mid]) >= (arr[i+1] + premin[mid]))r = mid;
else l = mid+1;
}
// cout << "l : " << l << endl;
if(l == q){// they dont collide
// cout << "dont collide" << endl;
ans[i] += premax[q-1];
ans[i+1] += abs(premin[q-1]);
}
else{
int point;// arr[i] moves till point , arr[i+1] moves till point+1
// cout << "premax : " << premax[l] << " , premin : " << premin[l] << endl;
if(mpa[premax[l]] < mpa[premin[l]]){
// cout << "maxfirst" << endl;
point = arr[i] + premax[l];
}
else{
// cout << "minfirst" << endl;
point = arr[i+1] + premin[l];
}
// cout << "point : " << point << endl;
ans[i] += point - arr[i];
ans[i+1] += arr[i+1] - point;
}
}
for(int i = 0;i<n;i++){
cout << ans[i] << '\n';
}
cout << endl;
}
signed main(){
ios_base::sync_with_stdio(0);cin.tie(0);
int testcase = 1;//cin >> testcase;
while(testcase--)solve();
cerr << 1000.0 * clock() / CLOCKS_PER_SEC << " ms" << endl;
}
/*
* dont get stuck on one approach , try different ones
* if you think the implementation is long & messy , change your approach
* think simple , dont overkill
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
596 KB |
Output is correct |
| 2 |
Correct |
1 ms |
596 KB |
Output is correct |
| 3 |
Correct |
1 ms |
596 KB |
Output is correct |
| 4 |
Correct |
2 ms |
596 KB |
Output is correct |
| 5 |
Correct |
2 ms |
596 KB |
Output is correct |
| 6 |
Correct |
2 ms |
596 KB |
Output is correct |
| 7 |
Incorrect |
2 ms |
684 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
596 KB |
Output is correct |
| 2 |
Correct |
1 ms |
596 KB |
Output is correct |
| 3 |
Correct |
1 ms |
596 KB |
Output is correct |
| 4 |
Correct |
2 ms |
596 KB |
Output is correct |
| 5 |
Correct |
2 ms |
596 KB |
Output is correct |
| 6 |
Correct |
2 ms |
596 KB |
Output is correct |
| 7 |
Incorrect |
2 ms |
684 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
