Xoractive.cpp: In function 'std::vector<int> guess(int)':
Xoractive.cpp:24:10: error: 'struct std::pair<const int, int>' has no member named 'S'
24 | if(to.S) {
| ^
Xoractive.cpp:25:12: error: 'struct std::pair<const int, int>' has no member named 'F'
25 | ans[to.F^a[0]] |= (1 << i);
| ^
Xoractive.cpp:30:8: error: 'struct std::pair<const int, int>' has no member named 'S'
30 | a[to.S-1] = to.F;
| ^
Xoractive.cpp:30:18: error: 'struct std::pair<const int, int>' has no member named 'F'
30 | a[to.S-1] = to.F;
| ^