Submission #139583

#	Time	Username	Problem	Language	Result	Execution time	Memory
139583		Bazarkuly2003	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include<bits/stdc++.h>
//#include<string>
//#include<cmath>
//#include<conio.h>
#define ll long  long
#define N 1000001
using namespace std;
ll n,m;
string s,q,t;


int press(std::string p) {
  if (++num_moves > MAX_NUM_MOVES) {
    wrong_answer("too many moves");
  }
  int len = p.length();
  if (len > 4 * N) {
    wrong_answer("invalid press");
  }
  for (int i = 0; i < len; ++i) {
    if (p[i] != 'A' && p[i] != 'B' && p[i] != 'X' && p[i] != 'Y') {
      wrong_answer("invalid press");
    }
  }
  int coins = 0;
  for (int i = 0, j = 0; i < len; ++i) {
    if (j < N && S[j] == p[i]) {
      ++j;
    } else if (S[0] == p[i]) {
      j = 1;
    } else {
      j = 0;
    }
    coins = std::max(coins, j);
  }
  return coins;
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>n;
if(press("A")==1){s="A";q="BXY";}else
if(press("B")==1){s="B";q="AXY";}else
if(press("X")==1){s="X";q="ABY";}else{s="Y";q="ABX";}

t=s+q[0]+q[0]+s+q[0]+q[1]+s+q[0]+q[2]+s+q[1];
while(s.size()<n){
m=press(t);
if(m==s.size()+0)s+=q[2];else
if(m==s.size()+1)s+=q[1];else s+=q[0];}
cout<<s;
}

Compilation message (stderr)

combo.cpp: In function 'int press(std::string)':
combo.cpp:13:9: error: 'num_moves' was not declared in this scope
   13 |   if (++num_moves > MAX_NUM_MOVES) {
      |         ^~~~~~~~~
combo.cpp:13:21: error: 'MAX_NUM_MOVES' was not declared in this scope
   13 |   if (++num_moves > MAX_NUM_MOVES) {
      |                     ^~~~~~~~~~~~~
combo.cpp:14:5: error: 'wrong_answer' was not declared in this scope
   14 |     wrong_answer("too many moves");
      |     ^~~~~~~~~~~~
combo.cpp:18:5: error: 'wrong_answer' was not declared in this scope
   18 |     wrong_answer("invalid press");
      |     ^~~~~~~~~~~~
combo.cpp:22:7: error: 'wrong_answer' was not declared in this scope
   22 |       wrong_answer("invalid press");
      |       ^~~~~~~~~~~~
combo.cpp:27:18: error: 'S' was not declared in this scope
   27 |     if (j < N && S[j] == p[i]) {
      |                  ^
combo.cpp: In function 'int main()':
combo.cpp:47:15: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   47 | while(s.size()<n){
      |       ~~~~~~~~^~
combo.cpp:49:5: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 | if(m==s.size()+0)s+=q[2];else
      |    ~^~~~~~~~~~~~
combo.cpp:50:5: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 | if(m==s.size()+1)s+=q[1];else s+=q[0];}
      |    ~^~~~~~~~~~~~