Submission #345432

#	Time	Username	Problem	Language	Result	Execution time	Memory
345432		Iwanttobreakfree	Combo (IOI18_combo)	C++14	Compilation error	0 ms	0 KiB

combo

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include "combo.h"
using namespace std;
string guess_sequence(int N) {
string p;
string S;
int guardado;
bool A,B,X,Y;
  p = "AB";
  for (int i = 0; i < N-2; ++i) {
    p += 'B';
  }
  int coins = press(p);
  if(coins==0){//Empieza x X o Y
  	string p = "XA";
  for (int i = 0; i < N-2; ++i) {
    p += 'A';
  }
  int coins=press(p);
  if (coins==0){//Empieza x Y
  	S[0]='Y';
  	bool Y=false;
  }
  else if (coins==1){//Empieza x X y no sigue A
  	S[0]='X';
  	bool A=false;
  }
  else {
  	for(int a=0;a<coins<a++){//Empieza x X y sigue A
  	S[a]=p[a];
  }
  bool A=false;
  }
  }
  else if(coins==1){//Empieza x A o x B
  	p="BX";
  	for (int i = 0; i < N-2; ++i) {
    p += 'X';
  }
  int coins=press(p);
  if(coins==0){//Empieza x A y no sigue B
  	S[0]='A';
  	bool B=false;
  }
  else if (coins==1){//Empieza x B y no sigue X
  	S[0]='B';
  	bool X=false;
  }
  else {
  	for(int a=0;a<coins<a++){//Empieza x B y sigue X
  	S[a]=p[a];
  }
  bool X=false;
  }
  }
  else {//Empieza x A y sigue B
  	for(int a=0;a<coins<a++){
  	S[a]=p[a];
  }
  bool B=false;
  guardado=coins;
  }
  while(coins<N){
  	if (S[0]=='A'){
  		for (int i = 0; i < N-coins; ++i) {
  			if (B) S += 'B',bool B=false;
   			else if (X) S += 'X',bool X=false;
   			else if (Y) S += 'Y',bool Y=false;
  }
	  }
	else if (S[0]=='B'){
  		for (int i = 0; i < N-coins; ++i) {
  			if (A) S += 'A',bool A=false;
   			else if (X) S += 'X',bool X=false;
   			else if (Y) S += 'Y',bool Y=false;
  }
	  }
	else if (S[0]=='X'){
  		for (int i = 0; i < N-coins; ++i) {
  			if (A) S += 'A', bool A=false;
   			else if (B) S += 'B', bool B=false;
   			else if (Y) S += 'Y', bool Y=false;
  }
}
	else if (S[0]=='Y'){
  		for (int i = 0; i < N-coins; ++i) {
  			if (A) S += 'A', bool A=false;
   			else if (B) S += 'B', bool B=false;
   			else if (X) S += 'X', bool X=false;
  }
}
   int coins=press(S);
   if (coins>guardado){
   	bool A=true;
   	bool B=true;
   	bool X=true;
   	bool Y=true;
   }
  }
  return S;
}

Compilation message (stderr)

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:26:9: warning: unused variable 'Y' [-Wunused-variable]
   26 |    bool Y=false;
      |         ^
combo.cpp:30:9: warning: unused variable 'A' [-Wunused-variable]
   30 |    bool A=false;
      |         ^
combo.cpp:33:17: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   33 |    for(int a=0;a<coins<a++){//Empieza x X y sigue A
      |                ~^~~~~~
combo.cpp:33:25: warning: operation on 'a' may be undefined [-Wsequence-point]
   33 |    for(int a=0;a<coins<a++){//Empieza x X y sigue A
      |                        ~^~
combo.cpp:33:25: warning: operation on 'a' may be undefined [-Wsequence-point]
combo.cpp:33:27: error: expected ';' before ')' token
   33 |    for(int a=0;a<coins<a++){//Empieza x X y sigue A
      |                           ^
      |                           ;
combo.cpp:36:8: warning: unused variable 'A' [-Wunused-variable]
   36 |   bool A=false;
      |        ^
combo.cpp:47:9: warning: unused variable 'B' [-Wunused-variable]
   47 |    bool B=false;
      |         ^
combo.cpp:51:9: warning: unused variable 'X' [-Wunused-variable]
   51 |    bool X=false;
      |         ^
combo.cpp:54:17: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   54 |    for(int a=0;a<coins<a++){//Empieza x B y sigue X
      |                ~^~~~~~
combo.cpp:54:25: warning: operation on 'a' may be undefined [-Wsequence-point]
   54 |    for(int a=0;a<coins<a++){//Empieza x B y sigue X
      |                        ~^~
combo.cpp:54:25: warning: operation on 'a' may be undefined [-Wsequence-point]
combo.cpp:54:27: error: expected ';' before ')' token
   54 |    for(int a=0;a<coins<a++){//Empieza x B y sigue X
      |                           ^
      |                           ;
combo.cpp:57:8: warning: unused variable 'X' [-Wunused-variable]
   57 |   bool X=false;
      |        ^
combo.cpp:61:17: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   61 |    for(int a=0;a<coins<a++){
      |                ~^~~~~~
combo.cpp:61:25: warning: operation on 'a' may be undefined [-Wsequence-point]
   61 |    for(int a=0;a<coins<a++){
      |                        ~^~
combo.cpp:61:25: warning: operation on 'a' may be undefined [-Wsequence-point]
combo.cpp:61:27: error: expected ';' before ')' token
   61 |    for(int a=0;a<coins<a++){
      |                           ^
      |                           ;
combo.cpp:64:8: warning: unused variable 'B' [-Wunused-variable]
   64 |   bool B=false;
      |        ^
combo.cpp:70:22: error: expected primary-expression before 'bool'
   70 |      if (B) S += 'B',bool B=false;
      |                      ^~~~
combo.cpp:71:28: error: expected primary-expression before 'bool'
   71 |       else if (X) S += 'X',bool X=false;
      |                            ^~~~
combo.cpp:72:28: error: expected primary-expression before 'bool'
   72 |       else if (Y) S += 'Y',bool Y=false;
      |                            ^~~~
combo.cpp:77:22: error: expected primary-expression before 'bool'
   77 |      if (A) S += 'A',bool A=false;
      |                      ^~~~
combo.cpp:78:28: error: expected primary-expression before 'bool'
   78 |       else if (X) S += 'X',bool X=false;
      |                            ^~~~
combo.cpp:79:28: error: expected primary-expression before 'bool'
   79 |       else if (Y) S += 'Y',bool Y=false;
      |                            ^~~~
combo.cpp:84:23: error: expected primary-expression before 'bool'
   84 |      if (A) S += 'A', bool A=false;
      |                       ^~~~
combo.cpp:85:29: error: expected primary-expression before 'bool'
   85 |       else if (B) S += 'B', bool B=false;
      |                             ^~~~
combo.cpp:86:29: error: expected primary-expression before 'bool'
   86 |       else if (Y) S += 'Y', bool Y=false;
      |                             ^~~~
combo.cpp:91:23: error: expected primary-expression before 'bool'
   91 |      if (A) S += 'A', bool A=false;
      |                       ^~~~
combo.cpp:92:29: error: expected primary-expression before 'bool'
   92 |       else if (B) S += 'B', bool B=false;
      |                             ^~~~
combo.cpp:93:29: error: expected primary-expression before 'bool'
   93 |       else if (X) S += 'X', bool X=false;
      |                             ^~~~
combo.cpp:98:10: warning: unused variable 'A' [-Wunused-variable]
   98 |     bool A=true;
      |          ^
combo.cpp:99:10: warning: unused variable 'B' [-Wunused-variable]
   99 |     bool B=true;
      |          ^
combo.cpp:100:10: warning: unused variable 'X' [-Wunused-variable]
  100 |     bool X=true;
      |          ^
combo.cpp:101:10: warning: unused variable 'Y' [-Wunused-variable]
  101 |     bool Y=true;
      |          ^