#include "cmp.h"
#define forn(x, a, b) for (int x = a; x <= b; ++x)
#define for1(x, a, b) for (int x = a; x >= b; --x)
bool bit(int mask, int i) {
return (mask >> i) & 1;
}
void remember(int n) {
forn(i, 0, 11) {
if (bit(n, i)) bit_set(i + 1);
else bit_set(12 + i + 1);
}
}
int compare(int b) {
int cnt = 0;
forn(i, 0, 11) {
cnt += bit(b, i);
}
int q = 1, pos = 0;
if (cnt > 6) {
q = -1;
pos = 12;
b ^= (1 << 12) - 1;
}
forn(i, pos, pos + 11) {
a += (bit_get(i + 1) << i);
}
if (a == b) return -1;
}
Compilation message
cmp.cpp: In function 'int compare(int)':
cmp.cpp:29:9: error: 'a' was not declared in this scope
a += (bit_get(i + 1) << i);
^
cmp.cpp:31:9: error: 'a' was not declared in this scope
if (a == b) return -1;
^
cmp.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
