oj.uz

Submission #344663

# Submission time Handle Problem Language Result Execution time Memory
344663 2021-01-06T07:19:26 Z pragmatist Divide and conquer (IZhO14_divide) C++14
100 / 100
 37 ms 5120 KB 
// turmak-_-
#include<bits/stdc++.h>

#define all(v) v.begin(),v.end()
#define sz(a) a.size()
#define nl "\n"
#define IOI return 0;
#define pb push_back
#define ppb pop_back()
#define ll long long
#define ull unsigned long long
#define ld long double
#define IOS ios_base :: sync_with_stdio(NULL); cin.tie(0); cout.tie(0);
#define pii pair<int,int>
#define X first
#define Y second


using namespace std;
const int N = (int)1e5 + 7 ;
const ll MOD = (ll)998244353;
const ll INF = (ll)1e18 + 7;
const int inf = (int)1e9 + 7;

pii dx[] = {{1, 0}, {-1, 0}, {0, 1}, {0, -1}};

ll x[N],g[N],d[N],p[N],p1[N],p2[N],mn[N];

void solve() {
    int n;
    cin>>n;

    ll mx = 0;
    mn[0]=INF;
    for(int i=1; i<=n; ++i) {
        cin>>x[i]>>g[i]>>d[i];
        if(d[i]>=1) mx = max(mx, g[i]);
        p[i]=p[i-1] + g[i];
        p1[i]=p1[i-1] + d[i];
        mn[i] = min(mn[i-1],p1[i-1]-x[i]);
    }
    for(int i=1; i<=n; ++i) {
        int l = 1, r = i, ans = i;
        while(l<=r) {
            int mid = (l+r)>>1;
            if(mn[mid]<=p1[i]-x[i]) {
                ans = mid;
                r = mid-1;
            } else {
                l = mid+1;
            }
        }
        mx = max(mx, p[i]-p[ans-1]);
    }
    cout<<mx<<nl;
}
int main() {
    IOS
    //freopen("cinema.in", "r", stdin);
    //freopen("cinema.out", "w", stdout);
    int tt=1;
    //  cin>>tt;
    while(tt--) {
        solve();
    }
    IOI
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct
25 Correct 2 ms 620 KB Output is correct
26 Correct 3 ms 876 KB Output is correct
27 Correct 4 ms 876 KB Output is correct
28 Correct 17 ms 2668 KB Output is correct
29 Correct 19 ms 2668 KB Output is correct
30 Correct 37 ms 4972 KB Output is correct
31 Correct 33 ms 4972 KB Output is correct
32 Correct 32 ms 5120 KB Output is correct
33 Correct 34 ms 5112 KB Output is correct
34 Correct 32 ms 4972 KB Output is correct
35 Correct 33 ms 4972 KB Output is correct
36 Correct 34 ms 4972 KB Output is correct