| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 951133 |
2024-03-21T07:57:50 Z |
veljko |
Snowball (JOI21_ho_t2) |
C++17 |
|
462 ms |
197248 KB |
/*****from dust I have come, dust I will be*****/
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define int long long
#define forn(i,n) for(int i=0;i<n;i++)
int dx[8] = { 1, 0, -1, 0, -1, 1, -1, 1 };
int dy[8] = { 0, 1, 0, -1, -1, 1, 1, -1 };
int ceil_div(int a, int b) {return a % b == 0 ? a / b : a / b + 1;}
const int MOD = 1000000007;
//const int MOD = 998244353;
typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds; // find_by_order, order_of_key
/*
int k = A.order_of_key(p[i].second);
A.erase(A.find_by_order(k));
erase element from pbds multiset
*/
template<class T>
struct segtree {
vector<T> st;
int n;
T identity_element;
segtree(int n, T identity_element) {
this->n = n;
this->identity_element = identity_element;
st.assign(4 * n, identity_element);
}
T combine(T l, T r) {
// Change this function as required.
T ans;
ans.maxval=max(l.maxval,r.maxval);
ans.minval=min(l.minval,r.minval);
return ans;
}
void buildUtil(int v, int tl, int tr, vector<T>& a) {
if (tl == tr) {
st[v] = a[tl];
return;
}
int tm = (tl + tr) >> 1;
buildUtil(2 * v + 1, tl, tm, a);
buildUtil(2 * v + 2, tm + 1, tr, a);
st[v] = combine(st[2 * v + 1], st[2 * v + 2]);
}
T queryUtil(int v, int tl, int tr, int l, int r) {
if (l > r) return identity_element;
if (tr < l or tl > r) {
return identity_element;
}
if (l <= tl and r >= tr) {
return st[v];
}
int tm = (tl + tr) >> 1;
return combine(queryUtil(2 * v + 1, tl, tm, l, r), queryUtil(2 * v + 2, tm + 1, tr, l, r));
}
void updateUtil(int v, int tl, int tr, int pos, T upd) {
if (tr < pos or tl > pos) return;
if (tl == tr) {
st[v] = upd;
return;
}
int tm = (tl + tr) >> 1;
updateUtil(2 * v + 1, tl, tm, pos, upd);
updateUtil(2 * v + 2, tm + 1, tr, pos, upd);
st[v] = combine(st[2 * v + 1], st[2 * v + 2]);
}
void build(vector<T> a) {
assert((int)a.size() == n);
buildUtil(0, 0, n - 1, a);
}
T query(int l, int r) {
return queryUtil(0, 0, n - 1, l, r);
}
void update(int pos, T upd) {
updateUtil(0, 0, n - 1, pos, upd);
}
};
/*Steps
1. Initialize the tree
2. Initialize the identity element along with size
3. Build it
4. Query
5. Update*/
struct node{
int maxval;
int minval;
};
void solve(){
int n, q; cin >> n>> q;
vector<int>a(n); for (auto &t : a) cin >> t;
vector<int>b(q); for (auto &t : b) cin >> t;
vector<int>dif;
forn(i,q){
if (i == 0) dif.push_back(b[0]);
else dif.push_back(dif.back() + b[i]);
}
// for (auto t : dif) cout <<t<<' ';
// cout <<'\n';
// segtree<node> st(q,{0,LONG_LONG_MAX});
// vector<node> temp;
// for(auto t : dif) temp.push_back({t,t});
// st.build(temp);
map<int, int>mp;
forn(i,q){
if (mp.find(dif[i]) == mp.end()) mp[dif[i]] = i;
}
//for (auto t : mp) cout <<t.first<<' '<<t.second<<'\n';
vector<int>ans(n, 0);
for (int i=0;i<n-1;i++){
int l = 0, r = a[i+1] - a[i], x = 0, y = 0;
while (l <= r){
int mid = (l + r) / 2;
bool ok = true;
int bad = (a[i+1] - a[i]) - mid;
for (auto t : dif){
if (t >= mid) break;
if (-t > bad){
ok = false;
break;
}
}
if (ok){
l = mid + 1;
x = mid;
}
else r = mid - 1;
}
ans[i] += x;
}
ans[n-1] += max(*max_element(dif.begin(), dif.end()), 0ll);
for (int i=1;i<n;i++){
int l = 0, r = a[i] - a[i-1], x = 0;
while (l <= r){
int mid = (l + r) / 2;
int bad = (a[i] - a[i-1]) - mid;
//cout <<bad<<'\n';
bool ok = true;
for (auto t : dif){
if (-t >= mid) break;
if (t > bad){
ok = false;
break;
}
}
if (ok){
l = mid + 1;
x = mid;
}
else r = mid - 1;
}
ans[i] += x;
}
ans[0] += max(0ll, *min_element(dif.begin(), dif.end()) * - 1);
for (auto t : ans) cout <<t<<'\n';
}
int32_t main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#ifndef ONLINE_JUDGE
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int t = 1; //cin >>t;
for (int i=1;i<=t;i++){
solve();
}
return 0;
}
Compilation message
Main.cpp: In function 'void solve()':
Main.cpp:130:46: warning: unused variable 'y' [-Wunused-variable]
130 | int l = 0, r = a[i+1] - a[i], x = 0, y = 0;
| ^
Main.cpp: In function 'int32_t main()':
Main.cpp:182:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
182 | freopen("input.txt", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:183:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
183 | freopen("output.txt", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
462 ms |
197248 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
462 ms |
197248 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
