제출 #249171

#제출 시각아이디문제언어결과실행 시간메모리
249171Dilshod_ImomovArranging Shoes (IOI19_shoes)C++17
컴파일 에러
0 ms0 KiB
# include <bits/stdc++.h> # define ll long long using namespace std; ll count_swaps( vector < ll > s ) { ll n = (ll)s.size(), ans = 0, sz = 0; vector < ll > ids, used(n); map < ll, vector < ll > > vc; for ( ll i = 0; i < n; i++ ) { vc[s[i]].push_back( i ); } // cout << "Done 1" << endl; for ( ll i = 0; i < n; i++ ) { if ( used[i] ) { continue; } ll l = i, r = *vc[-s[i]].begin(); // cout << "Done 2 " << l << ' ' << r << '\n'; vc[ s[i] ].erase( vc[ s[i] ].begin() ); ll rr = r; used[r] = 1; vc[-s[i]].erase( vc[-s[i]].begin() ); ll x = upper_bound( ids.begin(), ids.end(), i ) - ids.begin(); x = sz - x; l += x; x = upper_bound( ids.begin(), ids.end(), r ) - ids.begin(); x = sz - x; r += x; ans += r - l - 1; if ( s[i] > 0 ) { ans++; } sz++; ids.push_back( rr ); } return ans; } /* ll32_t main() { ll n; cin >> n; vector < ll > S(2 * n); for ( ll i = 0; i < 2 * n; i++ ) { cin >> S[i]; } // cout << count_swaps( S ); }*/

컴파일 시 표준 에러 (stderr) 메시지

/tmp/ccKYHo3k.o: In function `main':
grader.cpp:(.text.startup+0x282): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status