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>
#define ll long long
#define pb push_back
using namespace std;
ll n, x, g, d;
struct lol {
ll x;
ll g;
ll d;
};
int main() {
//freopen("divide.in", "r", stdin);
//freopen("divide.out", "w", stdout);
cin >> n;
vector<lol> v;
vector<ll> uf(n, 0);
ll mx = -1;
ll sum = 0;
for (int i = 0; i < n; i++) {
cin >> x >> g >> d;
v.pb({x, g, d});
if (i == 0 || v[i - 1].d + v[i].d < (v[i].x - v[i - 1].x)) {
sum = 0;
}
else {
v[i - 1].d -= (v[i].x - v[i - 1].x);
if (v[i - 1].d < 0) {
v[i].d += v[i - 1].d;
v[i - 1].d = 0;
}
}
sum += v[i].g;
mx = max(mx, sum);
}
cout << mx;
return 0;
}
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