oj.uz

Submission #875727

# Submission time Handle Problem Language Result Execution time Memory
875727 2023-11-20T12:00:25 Z Isam Art Exhibition (JOI18_art) C++17
0 / 100
 0 ms 348 KB 
#include<bits/stdc++.h>

#define SPEED ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define int long long
#define a first
#define b second
#define pii pair<int, int>
using namespace std;

const int sz = 5005;

const int inf = 1e15 + 7;

int n, ans;

pii c[sz];

struct edge{
    int mn, mx;
} t[sz << 2];

inline void push_up(int in){
    t[in].mx = max(t[in << 1].mx, t[in << 1 | 1].mx);
    t[in].mn = min(t[in << 1].mn, t[in << 1 | 1].mn);
    return;
}

void build(int l, int r, int in){
    if(l == r){
        t[in] = (edge){c[l].a, c[l].a};
        return;
    }
    int mid = l + ((r - l) >> 1);
    build(l, mid, in << 1);
    build(mid + 1, r, in << 1 | 1);
    push_up(in);
    return;
}

int get_mn(int l, int r, int in, int L, int R){
    if(l > R || r < L) return inf;
    if(l >= L && r <= R) return t[in].mn;
    int mid = l + ((r - l) >> 1);
    return min(get_mn(l, mid, in << 1, L, R), get_mn(mid + 1, r, in << 1 | 1, L, R));
}

int get_mx(int l, int r, int in, int L, int R){
    if(l > R || r < L) return -inf;
    if(l >= L && r <= R) return t[in].mx;
    int mid = l + ((r - l) >> 1);
    return max(get_mx(l, mid, in << 1, L, R), get_mx(mid + 1, r, in << 1 | 1, L, R));
}

int pref[sz];

int comp(int mna, int mxa, int s){
    return s - (mxa - mna);
}

signed main(){
    SPEED;
    cin >> n;
    for(register int i = 1; i <= n; ++i){
        cin >> c[i].a >> c[i].b;
        pref[i] = pref[i - 1] + c[i].b;
        c[i].b *= (-1);
    }
    sort(c+1, c+n+1);
    build(1, n, 1);
    for(register int i = 1; i < n; ++i){
        for(register int j = i; j <= n; ++j){
            int tmp = comp(get_mn(1, n, 1, i, j), get_mx(1, n, 1, i, j), pref[j] - pref[i-1]);
            ans = max(ans, tmp);
        }
    }
    cout << ans << '\n';
    return 0;
}

Compilation message

art.cpp: In function 'int main()':
art.cpp:63:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   63 |     for(register int i = 1; i <= n; ++i){
      |                      ^
art.cpp:70:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   70 |     for(register int i = 1; i < n; ++i){
      |                      ^
art.cpp:71:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   71 |         for(register int j = i; j <= n; ++j){
      |                          ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -