Submission #1112915

#	Time	Username	Problem	Language	Result	Execution time	Memory
1112915		adiyer	Bootfall (IZhO17_bootfall)	C++17	65 / 100	1012 ms	2160 KiB

bootfall

#pragma GCC optimize("Ofast") 
#pragma comment(linker, "/stack:200000000") 
// #pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native" ) 
#pragma GCC optimize("unroll-loops") 
#pragma GCC optimize("profile-values,profile-reorder-functions,tracer") 
#pragma GCC optimize("vpt") 
#pragma GCC optimize("rename-registers") 
#pragma GCC optimize("move-loop-invariants") 
#pragma GCC optimize("unswitch-loops") 
#pragma GCC optimize("function-sections") 
#pragma GCC optimize("data-sections") 
#pragma GCC optimize("branch-target-load-optimize") 
#pragma GCC optimize("branch-target-load-optimize2") 
#pragma GCC optimize("btr-bb-exclusive") 
#pragma GCC optimize("inline") 
#pragma GCC optimize("-fgcse") 
#pragma GCC optimize("-fgcse-lm") 
#pragma GCC optimize("-fipa-sra") 
#pragma GCC optimize("-ftree-pre") 
#pragma GCC optimize("-ftree-vrp") 
#pragma GCC optimize("-fpeephole2") 
#pragma GCC optimize("-ffast-math") 
#pragma GCC optimize("-fsched-spec") 
#pragma GCC optimize("-falign-jumps") 
#pragma GCC optimize("-falign-loops") 
#pragma GCC optimize("-falign-labels") 
#pragma GCC optimize("-fdevirtualize") 
#pragma GCC optimize("-fcaller-saves") 
#pragma GCC optimize("-fcrossjumping") 
#pragma GCC optimize("-fthread-jumps") 
#pragma GCC optimize("-freorder-blocks") 
#pragma GCC optimize("-fschedule-insns") 
#pragma GCC optimize("inline-functions") 
#pragma GCC optimize("-ftree-tail-merge") 
#pragma GCC optimize("-fschedule-insns2") 
#pragma GCC optimize("-fstrict-aliasing") 
#pragma GCC optimize("-falign-functions") 
#pragma GCC optimize("-fcse-follow-jumps") 
#pragma GCC optimize("-fsched-interblock") 
#pragma GCC optimize("-fpartial-inlining") 
#pragma GCC optimize("no-stack-protector") 
#pragma GCC optimize("-freorder-functions") 
#pragma GCC optimize("-findirect-inlining") 
#pragma GCC optimize("-fhoist-adjacent-loads") 
#pragma GCC optimize("-frerun-cse-after-loop") 
#pragma GCC optimize("inline-small-functions") 
#pragma GCC optimize("-finline-small-functions") 
#pragma GCC optimize("-ftree-switch-conversion") 
#pragma GCC optimize("-foptimize-sibling-calls") 
#pragma GCC optimize("-fexpensive-optimizations") 
#pragma GCC optimize("inline-functions-called-once") 
#pragma GCC optimize("-fdelete-null-pointer-checks")

#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0);
#define pb push_back
 
using namespace std;
 
typedef int ll;
 
const int N = 5e2 + 11;
const int MAX = 1e6;
 
short int n;
short int a[N];
 
int s;
 
vector < int > ans;
 
bitset < 500 * 500 + 1 > dp;
 
void sol(){
	cin >> n, dp[0] = 1;
	for(ll i = 1; i <= 500 * 500; i++) ans.pb(i);
	for(ll i = 1; i <= n; i++) cin >> a[i], dp |= (dp << a[i]), s += a[i];
	if(s % 2 || dp[s / 2] == 0){
		cout << "0\n";
		return;
	}
	for(short int i = 1; i <= n; i++){
		dp &= 0, dp[0] = 1, s = 0;
		for(short int j = 1; j <= n; j++)
			if(i != j)
				dp |= (dp << a[j]), s += a[j];
		int j = 0;
		while(j < ans.size()){
			if(s < ans[j] || (s - ans[j]) % 2 || !dp[(s - ans[j]) / 2]){
				if(j < ans.size()) swap(ans[j], ans[ans.size() - 1]);
				ans.pop_back();
			}
			else{
				j++;
			}
		}
	}
	sort(ans.begin(), ans.end());
	cout << ans.size() << '\n';
	for(int x : ans) cout << x << ' ';
}
 
signed main(){
	ios                     
	sol();
// 	slow();
//  stress();
}

Compilation message (stderr)

bootfall.cpp:2: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    2 | #pragma comment(linker, "/stack:200000000")
      | 
bootfall.cpp:5:71: warning: bad option '-fprofile-values' to pragma 'optimize' [-Wpragmas]
    5 | #pragma GCC optimize("profile-values,profile-reorder-functions,tracer")
      |                                                                       ^
bootfall.cpp:10:41: warning: bad option '-ffunction-sections' to pragma 'optimize' [-Wpragmas]
   10 | #pragma GCC optimize("function-sections")
      |                                         ^
bootfall.cpp:11:37: warning: bad option '-fdata-sections' to pragma 'optimize' [-Wpragmas]
   11 | #pragma GCC optimize("data-sections")
      |                                     ^
bootfall.cpp:12:51: warning: bad option '-fbranch-target-load-optimize' to pragma 'optimize' [-Wpragmas]
   12 | #pragma GCC optimize("branch-target-load-optimize")
      |                                                   ^
bootfall.cpp:13:52: warning: bad option '-fbranch-target-load-optimize2' to pragma 'optimize' [-Wpragmas]
   13 | #pragma GCC optimize("branch-target-load-optimize2")
      |                                                    ^
bootfall.cpp:14:40: warning: bad option '-fbtr-bb-exclusive' to pragma 'optimize' [-Wpragmas]
   14 | #pragma GCC optimize("btr-bb-exclusive")
      |                                        ^
bootfall.cpp:75:10: warning: bad option '-fprofile-values' to attribute 'optimize' [-Wattributes]
   75 | void sol(){
      |          ^
bootfall.cpp:75:10: warning: bad option '-ffunction-sections' to attribute 'optimize' [-Wattributes]
bootfall.cpp:75:10: warning: bad option '-fdata-sections' to attribute 'optimize' [-Wattributes]
bootfall.cpp:75:10: warning: bad option '-fbranch-target-load-optimize' to attribute 'optimize' [-Wattributes]
bootfall.cpp:75:10: warning: bad option '-fbranch-target-load-optimize2' to attribute 'optimize' [-Wattributes]
bootfall.cpp:75:10: warning: bad option '-fbtr-bb-exclusive' to attribute 'optimize' [-Wattributes]
bootfall.cpp: In function 'void sol()':
bootfall.cpp:89:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |   while(j < ans.size()){
      |         ~~^~~~~~~~~~~~
bootfall.cpp:91:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |     if(j < ans.size()) swap(ans[j], ans[ans.size() - 1]);
      |        ~~^~~~~~~~~~~~
bootfall.cpp: At global scope:
bootfall.cpp:104:13: warning: bad option '-fprofile-values' to attribute 'optimize' [-Wattributes]
  104 | signed main(){
      |             ^
bootfall.cpp:104:13: warning: bad option '-ffunction-sections' to attribute 'optimize' [-Wattributes]
bootfall.cpp:104:13: warning: bad option '-fdata-sections' to attribute 'optimize' [-Wattributes]
bootfall.cpp:104:13: warning: bad option '-fbranch-target-load-optimize' to attribute 'optimize' [-Wattributes]
bootfall.cpp:104:13: warning: bad option '-fbranch-target-load-optimize2' to attribute 'optimize' [-Wattributes]
bootfall.cpp:104:13: warning: bad option '-fbtr-bb-exclusive' to attribute 'optimize' [-Wattributes]

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