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Cod sursa(job #780247)
#include <fstream>
#include <algorithm>
#define MAXN 100005
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int n,m,a,x,v[MAXN],*it;
int main()
{
int i;
f>>n;
for(i=1;i<=n;i++)
f>>v[i];
f>>m;
for(i=1;i<=m;i++){
f>>a>>x;
if(a==2){
it=lower_bound(v+1,v+n+1,x);
g<<it-v<<'\n';}
else{
it=upper_bound(v+1,v+n+1,x);
if(a)
g<<it-v-1<<'\n';
else{
if(*(it-1)==x)
g<<it-v-1<<'\n';
else
g<<"-1\n";}}}
f.close();
g.close();
return 0;
}