Submission #120483

#TimeUsernameProblemLanguageResultExecution timeMemory
120483KieranHorganCrayfish scrivener (IOI12_scrivener)C++17
0 / 100
185 ms64760 KiB
#include <bits/stdc++.h> using namespace std; int a[1000005][23], curStep=0, node, i; void Init() {} void TypeLetter(char L) { a[++curStep][21] = L; a[curStep][22] = a[curStep-1][22]+1; a[curStep][0] = curStep-1; copy(a[curStep-1]+1, a[curStep-1]+20, a[curStep]+1); } void UndoCommands(int U) { copy(a[curStep-1-U], a[curStep-1-U]+23, a[++curStep]); } char GetLetter(int P) { for(i = 21, node = curStep; i >= 0; i--) if(a[node][22] - (1<<i) >= P+1) node = a[node][i]; return a[node][21]; }

Compilation message (stderr)

scrivener.cpp: In function 'void UndoCommands(int)':
scrivener.cpp:11:70: warning: operation on 'curStep' may be undefined [-Wsequence-point]
 void UndoCommands(int U) { copy(a[curStep-1-U], a[curStep-1-U]+23, a[++curStep]); }
                                                                      ^~~~~~~~~
scrivener.cpp:11:70: warning: operation on 'curStep' may be undefined [-Wsequence-point]
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...