oj.uz

Submission #86804

# Submission time Handle Problem Language Result Execution time Memory
86804 2018-11-27T15:13:51 Z vanbang9710 Divide and conquer (IZhO14_divide) C++14
100 / 100
 49 ms 3576 KB 
#include<iostream>
#include<ctime>
#include<cstdlib>
#include<cstdio>
#include<cmath>
#include<climits>
#include<cstring>
#include<iomanip>
#include<string>
#include<bitset>
#include<unordered_map>
#include<unordered_set>
#include<set>
#include<vector>
#include<map>
#include<queue>
#include<stack>
#include<deque>
#include<algorithm>
#include<functional>
#include<chrono>
//#include<windows.h>
//#include<direct.h>
#include<random>
#include<sstream>

#define y0 asdahsdlkahsdad
#define y1 aasdfasdfasdf
#define yn askfhwqriuperikldjk
#define j1 assdgsdgasghsf
#define taskname "divide"
//#define GuiltiaSinJurai

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

using namespace std;

template <typename T> inline void Cin(T &x)
{
    register char c;
    for (c = getchar(); c < '0' || c > '9'; c = getchar());
    for (x = 0; c >= '0' && c <= '9'; c = getchar())
        x = x * 10 + c - '0';
}

const int maxN = 1e5 + 1;
const ll LInf = 1e15;

struct TMine
{
    int x, g, d;
};
vector<TMine> p;
int n, m;
ll lab[maxN], sg, sd, ans = 0;
vector<ll> v;

inline void Update(int i, ll val) { for (; i <= m; i += i & -i) lab[i] = min(lab[i], val); }
inline ll Get(int i) { ll res = LInf; for (; i > 0; i &= i - 1) res = min(res, lab[i]); return res; }

int main()
{
    #ifdef GuiltiaSinJurai
    auto start = chrono::steady_clock::now();
    #endif
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    //freopen(taskname".inp", "r", stdin);
    //freopen(taskname".out", "w", stdout);

    Cin(n);
    sd = 0;
    p.resize(n);
    for (auto &t : p)
    {
        Cin(t.x); Cin(t.g); Cin(t.d);
        v.push_back(sd - t.x);
        sd += t.d;
    }
    sort(v.begin(), v.end());
    v.erase(unique(v.begin(), v.end()), v.end());
    m = v.size();
    fill_n(lab + 1, m, LInf);
    sg = sd = 0;
    for (auto &t : p)
    {
        Update(upper_bound(v.begin(), v.end(), sd - t.x) - v.begin(), sg);
        ans = max(ans, (sg += t.g) - Get(upper_bound(v.begin(), v.end(), (sd += t.d) - t.x) - v.begin()));
    }
    cout << ans;

    #ifdef GuiltiaSinJurai
    auto end = chrono::steady_clock::now();
    cerr << "In milliseconds : "
         << chrono::duration_cast<chrono::milliseconds>(end - start).count();
    cerr << '\n' << "In seconds : "
         << chrono::duration_cast<chrono::seconds>(end - start).count() << '\n';
    #endif
    return 0;

}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 408 KB Output is correct
3 Correct 2 ms 448 KB Output is correct
4 Correct 2 ms 464 KB Output is correct
5 Correct 2 ms 484 KB Output is correct
6 Correct 2 ms 484 KB Output is correct
7 Correct 2 ms 484 KB Output is correct
8 Correct 2 ms 484 KB Output is correct
9 Correct 2 ms 548 KB Output is correct
10 Correct 2 ms 548 KB Output is correct
11 Correct 3 ms 632 KB Output is correct
12 Correct 2 ms 632 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 KB Output is correct
2 Correct 2 ms 632 KB Output is correct
3 Correct 2 ms 632 KB Output is correct
4 Correct 2 ms 632 KB Output is correct
5 Correct 2 ms 632 KB Output is correct
6 Correct 2 ms 632 KB Output is correct
7 Correct 3 ms 732 KB Output is correct
8 Correct 2 ms 732 KB Output is correct
9 Correct 3 ms 732 KB Output is correct
10 Correct 3 ms 732 KB Output is correct
11 Correct 4 ms 748 KB Output is correct
12 Correct 4 ms 764 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 764 KB Output is correct
2 Correct 5 ms 1016 KB Output is correct
3 Correct 6 ms 1020 KB Output is correct
4 Correct 23 ms 2040 KB Output is correct
5 Correct 30 ms 2040 KB Output is correct
6 Correct 49 ms 3444 KB Output is correct
7 Correct 40 ms 3444 KB Output is correct
8 Correct 48 ms 3444 KB Output is correct
9 Correct 39 ms 3576 KB Output is correct
10 Correct 43 ms 3576 KB Output is correct
11 Correct 45 ms 3576 KB Output is correct
12 Correct 49 ms 3576 KB Output is correct