Submission #1089537

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089537		vjudge1	Kpart (eJOI21_kpart)	C++17	0 / 100	3 ms	1884 KiB

Main

/**
 *    data : 09.07.2024  
 *     
**/
#include <bits/stdc++.h>
// #include "algo/turnikmen.h"

using namespace std;


#define int long long
#define bitt __builtin_popcountll
#define bitzero __builtin_clz

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("-funsafe-loop-optimizations") 
#pragma GCC optimize("-funroll-loops") 
// #pragma GCC optimize("-fwhole-program") 
#pragma GCC optimize("Ofast,no-stack-protector") 
#pragma GCC optimize("-fthread-jumps") 
#pragma GCC optimize("-falign-functions") 
#pragma GCC optimize("-falign-jumps") 
#pragma GCC optimize("-falign-loops") 
#pragma GCC optimize("-falign-labels") 
#pragma GCC optimize("-fcaller-saves") 
#pragma GCC optimize("-fcrossjumping") 
#pragma GCC optimize("-fcse-follow-jumps") 
// #pragma GCC optimize("-fcse-skip-blocks") 
#pragma GCC optimize("-fdelete-null-pointer-checks") 
#pragma GCC optimize("-fdevirtualize") 
#pragma GCC optimize("-fexpensive-optimizations") 
#pragma GCC optimize("-fgcse") 
#pragma GCC optimize("-fgcse-lm") 
#pragma GCC optimize("-fhoist-adjacent-loads") 
#pragma GCC optimize("-finline-small-functions") 
#pragma GCC optimize("-findirect-inlining") 
#pragma GCC optimize("-fipa-sra") 
#pragma GCC optimize("-foptimize-sibling-calls") 
#pragma GCC optimize("-fpartial-inlining") 
#pragma GCC optimize("-fpeephole2") 
#pragma GCC optimize("-freorder-blocks") 
#pragma GCC optimize("-freorder-functions") 
#pragma GCC optimize("-frerun-cse-after-loop") 
#pragma GCC optimize("-fsched-interblock") 
#pragma GCC optimize("-fsched-spec") 
#pragma GCC optimize("-fschedule-insns") 
#pragma GCC optimize("-fschedule-insns2") 
#pragma GCC optimize("-fstrict-aliasing") 
// #pragma GCC optimize("-fstrict-overflow") 
#pragma GCC optimize("-ftree-switch-conversion") 
#pragma GCC optimize("-ftree-tail-merge") 
#pragma GCC optimize("-ftree-pre") 
#pragma GCC optimize("-ftree-vrp") 
#pragma GCC target("avx")

void fReopen () {
        #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
        #endif
}



signed main (/*  time : 9:17 AM   */) {
        ios_base::sync_with_stdio(false);
        cin.tie(nullptr);
        cout.tie(nullptr);
 
        fReopen();
       
        int t; cin >> t;
        while (t --> 0) {
                int n; cin >> n;
                vector<int> a(n);
                for (auto &x : a) cin >> x;
                vector<int> valid(n + 1, 1);
                const int N = 1e5 + 3;
                int dp[N], pref[N];
                pref[0] = 0;
                for (int i = 1; i <= n; i++) {
                        pref[i] = pref[i - 1] + a[i - 1];
                }
                for (int i = 0; i <= pref[n]; i++) dp[i] = 0;
                for (int i = 1; i <= n; i++) {
                        for (int j = pref[n]; j >= a[i]; j--) {
                                dp[j] = max(dp[j], dp[j - a[i]]);
                        }
                        dp[a[i - 1]] = i;
                        for (int j = 1; j <= i - 1; j++) {
                                int sum = pref[i] - pref[j - 1];
                                if (sum % 2 != 0 || dp[sum / 2] < j)/* cout << i - j + 1 << ' ', */valid[i - j + 1] = 0;
                        }
                }
                vector<int> ans;
                for (int i = 2; i <= n; i++) if (valid[i]) ans.push_back(i);
                cout << ans.size() << ' ';
                for (auto to : ans) cout << to << ' ';
                cout << endl;
        }
}

Compilation message (stderr)

Main.cpp: In function 'void fReopen()':
Main.cpp:59:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   59 |         freopen("input.txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen("output.txt", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 70