Submission #502958

#TimeUsernameProblemLanguageResultExecution timeMemory
502958MardukXylophone (JOI18_xylophone)C++14
Compilation error
0 ms0 KiB
#include <bits/stdc++.h> //#include "xylophone.h" using namespace std; const int MAXN = (1e4+7); bool arr[MAXN]; int memo_d[MAXN], memo_t[MAXN]; int sol[MAXN]; int D(int x){ if(memo_d[x]) return memo_d[x]; return memo_d[x] = query(x, x+1); } int T(int x){ if(memo_t[x]) return memo_t[x]; return memo_t[x] = query(x, x+2); } void solve(int N){ arr[2] = true; for(int i = 1;i<=N-2;i++){ if(D(i)+D(i+1) == T(i)) arr[i+2] = arr[i+1]; else arr[i+2] = !arr[i+1]; } for(int i = 0;i<2;i++){ int MIN = MAXN; for(int i = 2;i<=N;i++){ sol[i] = sol[i-1] + (arr[i]%2-(arr[i]+1)%2)*D(i-1); MIN = min(MIN,sol[i]); arr[i] = !arr[i]; } bool found = 0; for(int i = 1;i<=N;i++){ if(sol[i]+(1-MIN) == 1) break; if(sol[i]+(1-MIN) == N) {found = 1; break;} } if(!found){ for(int i = 1;i<=N;i++) answer(i,sol[i]+(1-MIN)); return; } } }

Compilation message (stderr)

xylophone.cpp: In function 'int D(int)':
xylophone.cpp:13:24: error: 'query' was not declared in this scope
   13 |     return memo_d[x] = query(x, x+1);
      |                        ^~~~~
xylophone.cpp: In function 'int T(int)':
xylophone.cpp:18:24: error: 'query' was not declared in this scope
   18 |     return memo_t[x] = query(x, x+2);
      |                        ^~~~~
xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:44:37: error: 'answer' was not declared in this scope
   44 |             for(int i = 1;i<=N;i++) answer(i,sol[i]+(1-MIN));
      |                                     ^~~~~~