#include "xylophone.h"
#include <iostream>
#include <algorithm>
using namespace std;
//static int A[5000];
//int M[5010][5010];
int A[5010];
int Sum[5010];
int Dos[5010];
bool Usado[5010];
//int ask(i,i+2)[5010];
int n;
int BS_Izq(int a,int b,int Num){
int mid,B=b;
while(b-a>1){
//cout<<a<<" "<<b<<endl;
mid=(a+b)/2;
if(ask(mid,B)!=Num){
b=mid;
}else{
a=mid;
}
}
return a;
}
void Mostrar(){
for(int i=0;i<n;i++){
cout<<A[i]<<" ";
}
cout<<endl;
}
int Solve(int a,int b,int c){
int mini=min(a,min(b,c));
int maxi=max(a,max(b,c));
return maxi-mini;
}
void detect_pitch(int N) {
n=N;
int i=0,j=n,opc1,opc2;
int Pos=BS_Izq(i,j-1,n-1);
for(int i=0;i<n-1;i++){
Dos[i]=ask(i,i+1);
}
/*for(int i=0;i<n-2;i++){
ask(i,i+2)[i]=ask(i,i+2);
}*/
Usado[0]=true;
if(Pos>0) A[Pos-1]=Dos[Pos-1];
A[Pos+1]=Dos[Pos];
for(int i=Pos-2;i>=0;i--){
opc1=A[i+1]+Dos[i];
opc2=A[i+1]-Dos[i];
if(opc1>=n or opc1<=0 or Usado[opc1]==true){
A[i]=opc2;
Usado[opc2]=true;
}
else if(opc2>=n or opc2<=0 or Usado[opc2]==true){
A[i]=opc1;
Usado[opc1]=true;
}
else{
int o1=Solve(opc1,A[i+1],A[i+2]);
if(o1==ask(i,i+2)){
A[i]=opc1;
Usado[opc1]=true;
}else{
A[i]=opc2;
Usado[opc2]=true;
}
}
}
for(int i=Pos+2;i<n;i++){
opc1=A[i-1]+Dos[i-1];
opc2=A[i-1]-Dos[i-1];
if(opc1>=n or opc1<=0 or Usado[opc1]==true){
A[i]=opc2;
Usado[opc2]=true;
}
else if(opc2>=n or opc2<=0 or Usado[opc2]==true){
A[i]=opc1;
Usado[opc1]=true;
}
else{
int o1=Solve(A[i-2],A[i-1],opc1);
if(o1==ask(i-2,i)){
A[i]=opc1;
Usado[opc1]=true;
}else{
A[i]=opc2;
Usado[opc2]=true;
}
}
}
for(int i=0;i<n;i++){
answer(i,A[i]);
}
//Mostrar();
/*for(int i=0;i<n;i++){
cout<<Dos[i]<<" ";
}
cout<<endl;
for(int i=0;i<n;i++){
cout<<ask(i,i+2)[i]<<" ";
}
cout<<endl;
cout<<"Pos:"<<Pos<<endl;
cout<<endl;
*/
return;
}
Compilation message
xylophone.cpp: In function 'int BS_Izq(int, int, int)':
xylophone.cpp:22:6: error: 'ask' was not declared in this scope
if(ask(mid,B)!=Num){
^~~
xylophone.cpp: In function 'void detect_pitch(int)':
xylophone.cpp:49:10: error: 'ask' was not declared in this scope
Dos[i]=ask(i,i+1);
^~~
xylophone.cpp:70:11: error: 'ask' was not declared in this scope
if(o1==ask(i,i+2)){
^~~
xylophone.cpp:92:11: error: 'ask' was not declared in this scope
if(o1==ask(i-2,i)){
^~~
