Submission #797420

#	Time	Username	Problem	Language	Result	Execution time	Memory
797420		fatemetmhr	Triple Jump (JOI19_jumps)	C++17	19 / 100	307 ms	87104 KiB

jumps

// Be name khoda // 
 
#include <bits/stdc++.h>
 
#define all(x) x.begin(), x.end()
#define pb     push_back
#define fi     first
#define se     second
#define mp     make_pair
 
typedef long long ll;
 
using namespace std;
 
const int maxn5 = 5e3 + 10;
const int maxn  = 1e6 + 10;
const int lg    = 20;
const ll inf    = 1e18;
 
int a[maxn5], rmq[maxn5][maxn5];
ll mx[maxn5], out[maxn];
vector <pair<pair<int, int>, int>> req;
 
int main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
 
	int n; cin >> n;
    for(int i = 0; i < n; i++){
        cin >> a[i];
        rmq[i][i] = a[i];
    }
    for(int i = 0; i < n; i++) for(int j = i + 1; j < n; j++)
        rmq[i][j] = max(rmq[i][j - 1], a[j]);
    int q; cin >> q;
    for(int i = 0; i < q; i++){
        int l, r; cin >> l >> r;
        l--; r--;
        req.pb({{r, l}, i});
    }
    sort(all(req));
    int ind = 0;
    for(int i = 0; i < n; i++){
        for(int j = i - 2; j >= 0; j--)
            mx[j] = max({mx[j + 1], mx[j], ll(a[j]) + a[i] + rmq[j + 1][(i + j) / 2]});
        while(ind < req.size() && req[ind].fi.fi == i){
            out[req[ind].se] = mx[req[ind].fi.se];
            ind++;
        }
    }
    for(int i = 0; i < q; i++)
        cout << out[i] << '\n';
}

Compilation message (stderr)

jumps.cpp: In function 'int main()':
jumps.cpp:45:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         while(ind < req.size() && req[ind].fi.fi == i){
      |               ~~~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54