#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
using namespace std;
const int N = 100001;
struct st{
int l, r, g, e;
};
st t[N * 4];
st a[N];
int n;
st m(st a, st b){
st res = {};
res.g = a.g + b.g;
res.e = a.e + b.e;
return res;
}
void build(int v = 1,int tl = 1, int tr = n){
if(tl == tr){
t[v] = a[tl];
}else{
int mid = (tl + tr) >> 1;
build(v * 2, tl, mid);
build(v * 2 + 1,mid + 1, tr);
t[v] = m(t[v * 2], t[v * 2 + 1]);
}
}
st get(int l, int r, int v = 1, int tl = 1, int tr = n){
if(tl > r || tr < l)
return {};
if(tl >= l && tr <= r){
return t[v];
}
int mid = (tl + tr) >> 1;
return m(get(l, r, v * 2, tl, mid), get(l, r, v * 2 + 1, mid + 1, tr));
}
main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n;
for(int i = 1; i <= n; i++){
cin >> a[i].l >> a[i].g >> a[i].e;
a[i].r = a[i].l;
}
build();
int ans = 0;
for(int i = 1; i <= n; i++){
int l = i, r = n;
while(r - l > 1){
int mid = (l + r) >> 1;
st g = get(i, mid);
if(g.e >= abs(a[i].l - a[mid].r)){
l = mid;
}else
r = mid;
}
st g = get(i, l);
ans = max(ans, g.g);
//cout << l <<" ";
}
//ans = max(get(n,n).g, ans);
cout << ans;
}
Compilation message
divide.cpp:43:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
43 | main(){
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
