제출 #232163

#제출 시각아이디문제언어결과실행 시간메모리
232163VEGAnnXOR Sum (info1cup17_xorsum)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> //#pragma GCC optimize("unroll-loops") //#pragma GCC optimize("-O3") //#pragma GCC optimize("Ofast") //#pragma GCC optimize("fast-math") //#pragma GCC optimize("no-stack-protector") #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #include <ext/rope> #define sz(x) int(x.size()) #define all(x) x.begin(),x.end() #define PB push_back #define MP make_pair #define pii pair<int, int> #define pll pair<ll, ll> #define pil pair<int, ll> #define pli pair<ll, int> #define pdd pair<ld, ld> #define ft first #define sd second using namespace std; using namespace __gnu_cxx; using namespace __gnu_pbds; typedef long long ll; typedef long double ld; template<class T> using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>; const int N = 1000100; const int M = 100100; const int BIG = int(5e6); const int oo = 2e9; const ll OO = 1e18; const int md = 998244353; const int PW = 30; ll sum; int a[N], ans = 0, n, mask, mn, mx, l1, r1, l2, r2, vc[N]; void calc(int &l, int &r){ while (l > 0 && vc[l - 1] >= mn) l--; while (r >= 0 && vc[r] > mx) r--; sum += r - l + 1; } int main() { #ifdef _LOCAL freopen("in.txt","r",stdin); //freopen("output.txt","w",stdout); #else // freopen("mining.in","r",stdin); freopen("mining.out","w",stdout); ios_base::sync_with_stdio(0); cin.tie(0); #endif cin >> n; for (int i = 0; i < n; i++) cin >> a[i]; for (int bt = 0; bt < PW; bt++){ mask = (1 << (bt + 1)) - 1; for (int i = 0; i < n; i++) vc[i] = a[i] & mask); sort(all(vc)); sum = 0; l1 = n, r1 = n - 1, l2 = n, r2 = n - 1; for (int cr : vc){ mn = (1 << bt) - cr; mx = (1 << (bt + 1)) - 1 - cr; calc(l1, r1); if (cr >= mn && cr <= mx) sum--; mn += (1 << (bt + 1)); mx = (1 << (bt + 2)) - 1 - cr; calc(l2, r2); if (cr >= mn && cr <= mx) sum--; } sum /= 2; if (sum & 1) ans += (1 << bt); } for (int i = 0; i < n; i++) ans ^= (a[i] + a[i]); cout << ans; return 0; }

컴파일 시 표준 에러 (stderr) 메시지

xorsum.cpp: In function 'int main()':
xorsum.cpp:66:32: error: expected ';' before ')' token
             vc[i] = a[i] & mask);
                                ^
xorsum.cpp:11:18: error: request for member 'begin' in 'vc', which is of non-class type 'int [1000100]'
 #define all(x) x.begin(),x.end()
                  ^
xorsum.cpp:68:14: note: in expansion of macro 'all'
         sort(all(vc));
              ^~~
xorsum.cpp:11:28: error: request for member 'end' in 'vc', which is of non-class type 'int [1000100]'
 #define all(x) x.begin(),x.end()
                            ^
xorsum.cpp:68:14: note: in expansion of macro 'all'
         sort(all(vc));
              ^~~