제출 #1314191

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1314191		Ekber_Ekber	XOR Sum (info1cup17_xorsum)	C++20	45 / 100	1695 ms	16084 KiB

xorsum

#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#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("unroll-loops")
#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("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#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("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#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("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#include <bits/stdc++.h>
#define GOOD_LUCK ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define int long long
#define endl "\n"
#define ff first
#define ss second
#define pb push_back
#define all(v) v.begin(), v.end()
using namespace std;

constexpr int MAX = 2e+5 + 1, INF = 2e+9, MOD = 1e+9 + 7, K = 29;

void _() {
	int n;
	cin >> n;
	vector <int> v(n);
	for (int &i : v) cin >> i;
	int res=0;
	for (int i = K; i >= 0; i--) {
		vector <int> x = v;
		int m = (1LL << (i + 1));
		for (int &j : x) j %= m;
		sort(all(x));
		int c=0;
		while (!x.empty()) {
			int k = x.back();
			int mn = (1LL << i);
			int mx = (1LL << (i + 1)) - 1;
			mn -= k, mx -= k;
			if (mn <= mx) c += upper_bound(all(x), mx) - lower_bound(all(x), mn);
			mn = (1LL << i) * 3;
			mx = (1LL << (i + 2)) - 1;
			mn -= k, mx -= k;
			if (mn <= mx) c += upper_bound(all(x), mx) - lower_bound(all(x), mn);
			x.pop_back();
		}
		res += (1LL << i) * (c % 2);
	}
	cout << res;
}

signed main() {

	GOOD_LUCK

	int tests=1;
	// cin >> tests;
	for (int i=1; i <= tests; i++) {
		_();
		cout << endl;
	}

	return 0;
}
/*
0011
0110
0110
1001

001
011
110
110

100 -> min
111 -> max



*/

컴파일 시 표준 에러 (stderr) 메시지

xorsum.cpp:21:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
   21 | #pragma GCC optimize("-fwhole-program")
      |                                       ^
xorsum.cpp:28:41: warning: bad option '-fstrict-overflow' to pragma 'optimize' [-Wpragmas]
   28 | #pragma GCC optimize("-fstrict-overflow")
      |                                         ^
xorsum.cpp:30:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
   30 | #pragma GCC optimize("-fcse-skip-blocks")
      |                                         ^
xorsum.cpp:44:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
   44 | #pragma GCC optimize("-funsafe-loop-optimizations")
      |                                                   ^
xorsum.cpp:59:8: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   59 | void _() {
      |        ^
xorsum.cpp:59:8: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
xorsum.cpp:59:8: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
xorsum.cpp:59:8: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]
xorsum.cpp:88:13: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
   88 | signed main() {
      |             ^
xorsum.cpp:88:13: warning: bad option '-fstrict-overflow' to attribute 'optimize' [-Wattributes]
xorsum.cpp:88:13: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
xorsum.cpp:88:13: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]

• Subtask 1: 7 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 38 / 38
• Subtask 5: 0 / 23