Submission #1078759

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078759		PoPularPlusPlus	Closing Time (IOI23_closing)	C++17	9 / 100	1062 ms	7400 KiB

closing

#include "closing.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(x) x.begin(),x.end()
#define pb(x) push_back(x)
#define mp(x,y) make_pair(x,y)
#define vf first
#define vs second

int max_score(int n, int x, int y, ll k,vector<int> u, vector<int> v, vector<int> w){
    ll weight[n];
    memset(weight,0,sizeof weight);
    for(int i = 0; i < n - 1; i++){
        if(u[i] > v[i]){
            swap(u[i] , v[i]);
        }
        weight[u[i]] = w[i];
    }

    for(int i = 0; i < n-1; i++){
        w[i] = weight[i];
    }

    ll cur = 0;
    int ans = 0;
    int cur_w[n];
    for(int i = x; i >= 0; i--){
        for(int j = y; j < n; j++){
            memset(cur_w,0,sizeof cur_w);
            ll rem = k;
            ll cur = 0;
            for(int tp = x; tp >= i; tp--){
                rem -= cur;
                cur_w[tp] = cur;
                if(tp > 0){
                    cur += w[tp-1];
                }
            }

            cur = 0;
            for(int tp = y; tp <= j; tp++){
                rem -= cur;
                cur_w[tp] = cur;
                cur += w[tp];
            }

            if(rem >= 0){
                int res = (x - i) + (j - y) + 2;
               // cout << res << ' ';
                int left = x + 1 , right = y - 1;
                ll cur_l = w[x] , cur_r = w[y-1];
                while(rem >= 0 && left < n && right >= 0){
                    if(right < 0 || (left < n && cur_l - cur_w[left] < cur_r - cur_w[right])){
                        if(rem - (max(0LL,cur_l - cur_w[left])) >= 0){
                            rem -= (max(0LL,cur_l - cur_w[left]));
                            cur_w[left] += (max(0LL,cur_l - cur_w[left]));
                            res++;
                            left++;
                            cur_l += w[left-1];
                        }
                        else break;
                    }
                    else {
                        if(rem - max(0LL, cur_r - cur_w[right]) >= 0){
                            rem -= max(0LL, cur_r - cur_w[right]);
                            cur_w[right] += max(0LL, cur_r - cur_w[right]);
                            res++;
                            right--;
                            cur_r += w[right];
                        }
                        else break;
                    }
                }
               // cout << i << ' ' << j << ' ' << res << ' ' << rem << ' ' << left << ' ' << right << '\n';
               // cout << i << ' ' << j << ' ' << res << ' ' << left << ' ' << right << "\n";
                ans = max(ans , res);
            }
        }
    }
    return ans;
}

Compilation message (stderr)

closing.cpp: In function 'int max_score(int, int, int, long long int, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:25:8: warning: unused variable 'cur' [-Wunused-variable]
   25 |     ll cur = 0;
      |        ^~~

• Subtask 0: 0 / 0
• Subtask 1: 0 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 0 / 9
• Subtask 6: 0 / 11
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 17