import java.util.*;
import java.io.*;
public class _2015_P1 {
public static void main(String[] args) throws IOException {
int N = readInt(), A = readInt(), B = readInt();
long arr[] = new long[N+1]; for(int i = 1; i<=N; i++) arr[i] = readLong();
if(A == 1) {
long mask = 0; for(int i = 45; i>=0; i--) {
long tempmask = mask + (1L<<i) - 1;
int dp[] = new int[N+1]; Arrays.fill(dp, Integer.MAX_VALUE); dp[0] = 0;
for(int j = 1; j<=N; j++) {
long sum = 0;
for(int k = j; k>0; k--) {
sum += arr[k];
if(sum > tempmask) break;
if(dp[k-1] != Integer.MAX_VALUE && (tempmask|sum) == tempmask) {
dp[j] = Math.min(dp[j], dp[k-1]+1);
}
}
}
if(dp[N] > B) mask = tempmask + 1;
}
println(mask);
}
else {
long mask = 0; for(int i = 45; i>=0; i--) {
long tempmask = mask + (1L<<i) - 1;
boolean dp[][] = new boolean[N+1][B+1]; dp[0][0] = true;
for(int j = 1; j<=B; j++) {
for(int k = 1; k<=N; k++) {
long sum = 0;
for(int l = k; l>0; l--) {
sum += arr[l];
if(sum > tempmask) break;
if(dp[l-1][j-1] && (tempmask|sum) == tempmask) {
dp[k][j] = true; break;
}
}
}
}
boolean pos = false; for(int j = A; j<=B; j++) pos |= dp[N][j];
if(!pos) mask = tempmask+1;
}
println(mask);
}
exit();
}
final private static int BUFFER_SIZE = 1 << 16;
private static DataInputStream din = new DataInputStream(System.in);
private static byte[] buffer = new byte[BUFFER_SIZE];
private static int bufferPointer = 0, bytesRead = 0;
static PrintWriter pr = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
public static String readLine() throws IOException {
byte[] buf = new byte[64]; // line length
int cnt = 0, c;
while ((c = Read()) != -1) {
if (c == '\n')
break;
buf[cnt++] = (byte) c;
}
return new String(buf, 0, cnt);
}
public static String read() throws IOException {
byte[] ret = new byte[1024];
int idx = 0;
byte c = Read();
while (c <= ' ') {
c = Read();
}
do {
ret[idx++] = c;
c = Read();
} while (c != -1 && c != ' ' && c != '\n' && c != '\r');
return new String(ret, 0, idx);
}
public static int readInt() throws IOException {
int ret = 0;
byte c = Read();
while (c <= ' ')
c = Read();
boolean neg = (c == '-');
if (neg)
c = Read();
do {
ret = ret * 10 + c - '0';
} while ((c = Read()) >= '0' && c <= '9');
if (neg)
return -ret;
return ret;
}
public static long readLong() throws IOException {
long ret = 0;
byte c = Read();
while (c <= ' ')
c = Read();
boolean neg = (c == '-');
if (neg)
c = Read();
do {
ret = ret * 10 + c - '0';
} while ((c = Read()) >= '0' && c <= '9');
if (neg)
return -ret;
return ret;
}
public static double readDouble() throws IOException {
double ret = 0, div = 1;
byte c = Read();
while (c <= ' ')
c = Read();
boolean neg = (c == '-');
if (neg)
c = Read();
do {
ret = ret * 10 + c - '0';
} while ((c = Read()) >= '0' && c <= '9');
if (c == '.') {
while ((c = Read()) >= '0' && c <= '9') {
ret += (c - '0') / (div *= 10);
}
}
if (neg)
return -ret;
return ret;
}
private static void fillBuffer() throws IOException {
bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
if (bytesRead == -1)
buffer[0] = -1;
}
private static byte Read() throws IOException {
if (bufferPointer == bytesRead)
fillBuffer();
return buffer[bufferPointer++];
}
public void close() throws IOException {
if (din == null)
return;
din.close();
}
static void print(Object o) {
pr.print(o);
}
static void println(Object o) {
pr.println(o);
}
static void flush() {
pr.flush();
}
static void println() {
pr.println();
}
static void exit() throws IOException {
din.close();
pr.close();
System.exit(0);
}
}
Compilation message
sculpture.java:4: error: class _2015_P1 is public, should be declared in a file named _2015_P1.java
public class _2015_P1 {
^
1 error
