Submission #686758

#	Time	Username	Problem	Language	Result	Execution time	Memory
686758		tolbi	Bootfall (IZhO17_bootfall)	C++17	13 / 100	1092 ms	39476 KiB

bootfall

#pragma optimize("Bismillahirrahmanirrahim")
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█■█
//█─█─█▄─█▄─█─█─█─█
//Allahuekber
//ahmet23 orz...
//Sani buyuk Osman Pasa Plevneden cikmam diyor.
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
#define author tolbi
#include <bits/stdc++.h>
#ifdef LOCAL
	#include "23.h"
#endif
#define int long long
#define endl '\n'
#define vint(x) vector<int> x
#define deci(x) int x;cin>>x;
#define decstr(x) string x;cin>>x;
#define cinarr(x) for (auto &it : x) cin>>it;
#define coutarr(x) for (auto &it : x) cout<<it<<" ";cout<<endl;
#define sortarr(x) sort(x.begin(),x.end())
#define sortrarr(x) sort(x.rbegin(),x.rend())
#define det(x) cout<<"NO\0YES"+x*3<<endl;
#define INF LONG_LONG_MAX
#define rev(x) reverse(x.begin(),x.end());
#define ios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define tol(bi) (1LL<<((int)(bi)))
const int MOD = 1e9+7;
using namespace std;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
int32_t main(){
	ios;
	int t=1;
	int tno = 0;
	if (!t) cin>>t;
	while (t-(tno++)){
		deci(n);
		vint(arr(n));
		cinarr(arr);
		vector<int> ansarr(2500001,0);
		ansarr[0]=1;
		int sum = 0;
		for (int i = 0; i < n; i++){
			sum+=arr[i];
			for(int j = ansarr.size()-arr[i]-1; j >= 0; j--){
				ansarr[j + arr[i]] += ansarr[j];
			}
		}
		if (sum%2 || ansarr[sum/2]==0){
			cout<<0<<endl;
			continue;
		}
		vector<int> kk(2500001,0);
		for (int i = 0; i < n; i++){
			for (int j = 0; j < ansarr.size(); j++){
				if (ansarr[j]>0 && j*2>=sum-arr[i]) kk[j*2-sum+arr[i]]++;
				if (j<ansarr.size()-arr[i]) ansarr[j+arr[i]]-=ansarr[j];
			}
			for (int j = ansarr.size()-arr[i]-1; j >= 0; j--){
				ansarr[j+arr[i]]+=ansarr[j];
			}
		}
		vector<int> hueh;
		for (int i = 1; i < kk.size(); i++){
			if (kk[i]==n) hueh.push_back(i);
		}
		cout<<hueh.size()<<endl;
		coutarr(hueh);
	}
}

Compilation message (stderr)

bootfall.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
bootfall.cpp: In function 'int32_t main()':
bootfall.cpp:57:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |    for (int j = 0; j < ansarr.size(); j++){
      |                    ~~^~~~~~~~~~~~~~~
bootfall.cpp:59:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'long long unsigned int' [-Wsign-compare]
   59 |     if (j<ansarr.size()-arr[i]) ansarr[j+arr[i]]-=ansarr[j];
bootfall.cpp:66:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   for (int i = 1; i < kk.size(); i++){
      |                   ~~^~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 0 / 15
• Subtask 4: 0 / 16
• Subtask 5: 0 / 21
• Subtask 6: 0 / 35