#include <bits/stdc++.h>
using namespace std;
#define pb push_back
vector<vector<int> > v;
int encode (int n, int x, int y) {
v.pb({});
vector<int> subset = {0, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0};
for(int i = 0; i < 924; i++) {
v.pb(subset);
/*int j = -1, cnt = 0;
for(int i = 12; i >= 1; i--) {
if(!subset[i]) {
j = i;
break;
}
cnt++;
}
for(; j >= 1; j--) {
if(subset[j]) {
subset[j] = false;
for(int i = j + 1; i <= j + 1 + cnt; i++) {
subset[i] = true;
}
for(int i = j + 1 + cnt + 1; i <= 12; i++) {
subset[i] = false;
}
break;
}
}*/
// next_permutation(subset.begin(), subset.end());
}
return 1;
for(int i = 1; i <= 12; i++) {
if(v[x][i] == -1 && v[y][i] == 0) {
return i;
}
}
return -1;
}
Compilation message
/usr/bin/ld: /tmp/ccCHnBtk.o: in function `main':
grader_decode.c:(.text.startup+0x22f): undefined reference to `decode(int, int, int)'
collect2: error: ld returned 1 exit status
