This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int MAXQ = 1000005;
const ll INF = (ll)(1e18);
struct SegmentTree
{
int n;
ll vmin[MAXQ] = {0};
ll vmax[MAXQ] = {0};
ll lazy[MAXQ] = {0};
void init(int _n) { n = _n; }
void lazy_update(int node, int l, int r)
{
vmin[node] += lazy[node]; vmax[node] += lazy[node];
if(l==r) return;
lazy[2*node] += lazy[node];
lazy[2*node+1] += lazy[node];
lazy[node] = 0;
}
void update(int node, int l, int r, int L, int R, int add)
{
lazy_update(node, l, r);
if (l > R || r < L) return;
if (L <= l && r <= R) {
lazy[node] += add;
lazy_update(node, l, r);
return;
}
int mid = (l+r)/2;
update(2*node, l, mid, L, R, add);
update(2*node+1, mid+1, r, L, R, add);
vmin[node] = min(vmin[2*node], vmin[2*node+1]);
vmax[node] = max(vmax[2*node], vmax[2*node+1]);
}
ll get(int node, int l, int r, int lb)
{
lazy_update(node, l, r);
if (l==r) return vmin[node];
int mid = (l+r)/2;
if (vmax[2*node+1]+lazy[2*node+1] >= lb)
return get(2*node+1, mid + 1, r, lb);
return min(vmin[2*node+1]+lazy[2*node+1], get(2*node, l, mid, lb));
}
void add_range(int L, int R, int add) { update(1, 0, n-1, L, R, add); }
ll min_suffix(int lb)
{
if (vmax[1]<lb) return -INF;
return min(0LL, get(1, 0, n-1, lb));
}
} T;
vector<int> distribute_candies(vector<int> C, vector<int> L, vector<int> R, vector<int> V)
{
int n = C.size(); int q = L.size();
vector<int> A(n);
vector<vector<int>> begin_at(n,vector<int>()), end_at(n,vector<int>());
for(int i=0;i<q;i++)
{
begin_at[L[i]].push_back(i);
end_at[R[i]].push_back(i);
}
T.init(q+1);
vector<int> final_A(n);
for(int i=0;i<n;i++)
{
if (i>0)
{
T.add_range(0,0,-A[i-1]);
for(int j:end_at[i-1]) T.add_range(0,1+j,-V[j]);
}
T.add_range(0,0,A[i]);
for(int j:begin_at[i]) T.add_range(0,1+j,V[j]);
int l = 1, r = C[i]+1;
while (l<=r)
{
int mid = (l+r)/2;
ll smin = T.min_suffix(mid);
if (-smin+mid>C[i]) r = mid-1;
else l = mid+1;
}
final_A[i] = r;
}
return final_A;
}
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