Submission #302066

#	Time	Username	Problem	Language	Result	Execution time	Memory
302066		chirathnirodha	Crayfish scrivener (IOI12_scrivener)	C++17	34 / 100	781 ms	262148 KiB

scrivener

#include<bits/stdc++.h>
using namespace std;

vector<string> past;
void Init(){
}
void TypeLetter(char L) {
    if(past.size()==0){
        string x(1,L);
        past.push_back(x);
    }
    else{
        string last=past[past.size()-1];
        string y(last.size()+1,' ');
        for(int i=0;i<last.size();i++)y[i]=last[i];
        y[y.size()-1]=L;
        past.push_back(y);
    }
}
void UndoCommands(int U) {
    past.push_back(past[past.size()-U-1]);
}
char GetLetter(int P) {
    return past[past.size()-1][P];
}

Compilation message (stderr)

scrivener.cpp: In function 'void TypeLetter(char)':
scrivener.cpp:15:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         for(int i=0;i<last.size();i++)y[i]=last[i];
      |                     ~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 22 / 22
• Subtask 4: 0 / 26
• Subtask 5: 0 / 40