이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;
ll n, a, b, A[N], pref[N];
void solve(){
cin >> n >> a >> b;
for(int i = 1; i <= n; ++i) cin >> A[i];
pref[0] = 0;
for(int i = 1; i <= n; ++i) pref[i] = pref[i - 1] + A[i];
ll ans = 1e18;
priority_queue<array<ll, 4>> Q;
ll mn = 1e18, split = 1;
for(int i = 1; i <= n; ++i){
if(mn > (pref[i] | (pref[n] - pref[i]))) split = i, mn = pref[i] | (pref[n] - pref[i]);
}
Q.push({-mn, split, 1, n});
int x = 0;
ans = 0;
while(!Q.empty() && x < b){
int l = Q.top()[2], r = Q.top()[3], spl = Q.top()[1];
if(pref[r] - pref[l - 1] <= -Q.top()[0]){
ans |= pref[r] - pref[l - 1];
Q.pop();
continue;
}
Q.pop();
int vl = l, vr = spl;
int pl = spl + 1, pr = r;
l = vl, r = vr;
ll mn = pref[r] - pref[l - 1];
ll split = l;
for(int j = l; j <= r; ++j){
if(mn > ((pref[j] - pref[l - 1]) | (pref[r] - pref[j]))) split = j, mn = ((pref[j] - pref[l - 1]) | (pref[r] - pref[j]));
}
Q.push({-mn, split, l, r});
l = pl, r = vr;
mn = pref[r] - pref[l - 1];
split = l;
for(int j = l; j <= r; ++j){
if(mn > ((pref[j] - pref[l - 1]) | (pref[r] - pref[j]))) split = j, mn = ((pref[j] - pref[l - 1]) | (pref[r] - pref[j]));
}
Q.push({-mn, split, l, r});
++x;
}
for(;!Q.empty();) ans |= pref[Q.top()[3]] - pref[Q.top()[2] - 1], Q.pop();
cout << ans;
}
int main(){
cin.tie(0); ios::sync_with_stdio(0);
int tt = 1, aa;
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
// cin >> tt;
while(tt--){
solve();
en;
}
cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
return 0;
}
컴파일 시 표준 에러 (stderr) 메시지
sculpture.cpp: In function 'void solve()':
sculpture.cpp:41:23: warning: unused variable 'pr' [-Wunused-variable]
41 | int pl = spl + 1, pr = r;
| ^~
sculpture.cpp: In function 'int main()':
sculpture.cpp:73:15: warning: unused variable 'aa' [-Wunused-variable]
73 | int tt = 1, aa;
| ^~
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