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Cod sursa(job #343437)
#include <fstream.h>
#define NMAX 100001
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int Z,N,M;
long A[NMAX];
int cautbin(int s, int d, int x)
{int m;
if (s>d) if(Z==0) return -1; else return d;
else {m=s+(d-s)/2;
if(A[m]==x) return m;
else if(x<A[m]) return cautbin(s,m-1,x);
else return cautbin(m+1,d,x);
}
}
void citire()
{int i,x,p;
fin>>N;
for(i=1;i<=N;i++)
fin>>A[i];
fin>>M;
for(i=1;i<=M;i++)
{fin>>Z>>x;
p=cautbin(1,N,x);
if(Z==0 && p!=-1) {while(A[p+1]==x) p=p+1;}
if(Z==1) {p=p-1; if(N>20) p=p-2;
while(A[p+1]<=x) p=p+1;}
if(Z==2) {p=p+1; if(N>20) p=p+2;
while(A[p-1]>=x) p=p-1;}
fout<<p<<"\n";
}
}
int main()
{citire();
fin.close();
fout.close();
return 0;
}