#include<bits/stdc++.h>
using namespace std;
void DBG() { cerr << "]\n"; }
template<class H, class... T> void DBG(H h, T... t) {
cerr << h; if(sizeof...(t)) cerr << ", ";
DBG(t...);
}
#ifdef LOCAL
#define dbg(...) cerr << "[" << #__VA_ARGS__ << "]: [", DBG(__VA_ARGS__)
#else
#define dbg(...) 0
#endif // LOCAL
#define FOR(i,a,b) for(int i = (a) ; i<(b) ; i++)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for(int i = (b)-1 ; i>=(a) ; i--)
#define R0F(i,a) ROF(i,0,a)
#define each(e,a) for(auto &e : (a))
#define sz(v) (int)(v).size()
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pb push_back
#define tcT template<class T
#define nl "\n"
using ll = long long;
using vi = vector<int>;
using pi = pair<int,int>;
using str = string;
tcT> using V = vector<T>;
tcT> using pqg = priority_queue<T,vector<T>,greater<T>>;
void setIO(string NAME = "") {
cin.tie(0)->sync_with_stdio(0);
if(sz(NAME)) {
freopen((NAME + ".inp").c_str(),"r",stdin);
freopen((NAME + ".out").c_str(),"w",stdout);
}
}
tcT> ckmax(T&a, const T&b) {
return b > a ? a = b, 1 : 0;
}
tcT> ckmin(T&a, const T&b) {
return b < a ? a = b, 1 : 0;
}
const int MOD = 1e9 + 7;
const int MX = 2e3+5;
int N, a[MX], A, B, L[MX], R[MX];
void solve() {
cin>>N>>A>>B;
FOR(i,1,N+1) cin>>a[i];
ll msk = (1LL<<41)-1;
R0F(b,41) {
msk ^= (1LL<<b);
FOR(i,1,N+1) {
L[i] = MOD;
R[i] = -MOD;
ll sum = 0;
R0F(j,i) {
sum += a[j+1];
if((sum&msk) == sum) {
ckmin(L[i], L[j]+1);
ckmax(R[i], R[j]+1);
}
}
}
if(R[N] < A || L[N] > B) msk ^= 1<<b;
}
cout << msk << nl;
}
int main() {
setIO();
int t=1;
//cin>>t;
while(t-->0) {
solve();
}
return 0;
}
Compilation message
sculpture.cpp:42:6: error: ISO C++ forbids declaration of 'ckmax' with no type [-fpermissive]
42 | tcT> ckmax(T&a, const T&b) {
| ^~~~~
sculpture.cpp:45:6: error: ISO C++ forbids declaration of 'ckmin' with no type [-fpermissive]
45 | tcT> ckmin(T&a, const T&b) {
| ^~~~~
sculpture.cpp: In function 'void setIO(std::string)':
sculpture.cpp:37:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
37 | freopen((NAME + ".inp").c_str(),"r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sculpture.cpp:38:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
38 | freopen((NAME + ".out").c_str(),"w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
