#include<bits/stdc++.h>
#define print(_v) for (auto& _e : _v) {cerr << _e << ' ';} cerr << '\n';
using namespace std;
using ll = long long;
void file() {
const string FILE_NAME = "FILE_NAME";
freopen((FILE_NAME + ".inp").c_str(), "r", stdin);
freopen((FILE_NAME + ".out").c_str(), "w", stdout);
}
const int N = 2e5 + 5;
ll a[N], b[N], p[N], res[N];
int n, q;
vector<pair<ll, ll>> c;
void pre_calc() {
for (int i = 1; i <= q; ++i)
p[i] = p[i-1] + b[i];
vector<ll> pos, neg;
if (p[1] >= 0) neg.emplace_back(0);
bool flag = 0;
for (int i = 1; i <= q;) {
int j = i; ll v = 0;
if (p[i] >= 0) {
while (j <= q && p[j] >= 0) v = max(v, p[j]), j++;
pos.emplace_back(v);
} else {
while (j <= q && p[j] <= 0) v = min(v, p[j]), j++;
neg.emplace_back(v);
if (j == q + 1) flag = 1;
}
i = j;
}
c.clear();
ll cur = 0;
for (int i = 0; i < pos.size(); ++i) {
cur = min(cur, neg[i]);
if (c.empty() || pos[i] > c.back().first)
c.emplace_back(pos[i], cur);
}
if (flag) c.emplace_back(pos.empty() ? 0 : pos.back(), cur);
}
ll val(int i, int j) {
return min(c[j].first, a[i+1] - a[i] + c[j].second);
}
int check(int i, int j) {
return (j == 0 || val(i, j) > val(i, j-1))
&& (val(i, j) >= val(i, j+1));
}
void solve(int f = 0) {
// tim dinh cua day min(c[i].first, D + c[i].second) voi moi D
for (int i = 1; i <= n; ++i) {
if (c.size() == 1) {
res[f ? n-i+1 : i] += val(i, 0); continue;
}
int lo = 0, hi = int(c.size()) - 3, mid,
ans = val(i, c.size() - 1) > val(i, c.size() - 2) ? c.size() - 1 : c.size() - 2;
while (lo <= hi) {
mid = (lo + hi) >> 1;
if (check(i, mid))
ans = mid, lo = hi + 1;
else if (val(i, mid) < val(i, mid + 1))
lo = mid + 1;
else
hi = mid - 1;
}
res[f ? n-i+1 : i] += val(i, ans);
}
}
int main() {
cin.tie(0)->sync_with_stdio(0); cout.tie(0);
// min(pre[i], D - min[i])
// -> day tang roi giam
cin >> n >> q;
a[n + 1] = 1e17;
for (int i = 1; i <= n; ++i)
cin >> a[i];
for (int i = 1; i <= q; ++i)
cin >> b[i];
pre_calc();
solve();
for (int i = 1; i <= n; ++i)
a[i] = -a[i];
reverse(a + 1, a + n + 1);
for (int i = 1; i <= q; ++i)
b[i] = -b[i];
pre_calc();
solve(1);
for (int i = 1; i <= n; ++i)
cout << res[i] << '\n';
return 0;
}
Compilation message
Main.cpp: In function 'void pre_calc()':
Main.cpp:34:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
34 | for (int i = 0; i < pos.size(); ++i) {
| ~~^~~~~~~~~~~~
Main.cpp: In function 'void file()':
Main.cpp:7:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
7 | freopen((FILE_NAME + ".inp").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:8:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
8 | freopen((FILE_NAME + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
2 ms |
340 KB |
Output is correct |
| 4 |
Correct |
2 ms |
468 KB |
Output is correct |
| 5 |
Correct |
2 ms |
340 KB |
Output is correct |
| 6 |
Correct |
2 ms |
340 KB |
Output is correct |
| 7 |
Incorrect |
2 ms |
340 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
2 ms |
340 KB |
Output is correct |
| 4 |
Correct |
2 ms |
468 KB |
Output is correct |
| 5 |
Correct |
2 ms |
340 KB |
Output is correct |
| 6 |
Correct |
2 ms |
340 KB |
Output is correct |
| 7 |
Incorrect |
2 ms |
340 KB |
Output isn't correct |
| 8 |
Halted |
0 ms |
0 KB |
- |
