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Cod sursa(job #713994)
#include<fstream>
using namespace std;
int v[100001],n;
int val(int x) {
int min,max,mid;
min=1;
max=n;
if(n==0) return -1;
else
do {
mid=min/2+max/2;
if(x>v[mid])
min=mid+1;
else
max=mid-1;
}
while(v[mid]!=x&&min>max);
if(v[mid]==x) {
while(v[mid]==x) mid++;
return mid-1;
}
else return v[mid];
}
int pozmax(int x) {
int min,max,mid;
min=1;
max=n;
do {
mid=min/2+max/2;
if(x<v[mid])
min=mid+1;
else
max=mid-1;
}
while(v[mid]!=x&&min>max);
if(v[mid]==x) {
while(v[mid]==x) mid++;
return mid-1;
}
else return v[mid];
}
int pozmin(int x) {
int min,max,mid;
min=1;
max=n;
do {
mid=min/2+max/2;
if(x>v[mid])
min=mid+1;
else
max=mid-1;
}
while(v[mid]!=x&&min>max);
if(v[mid]==x) {
while(v[mid]==x) mid--;
return mid+1;
}
else return v[mid];
}
int main() {
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int m,i,x,y;
f>>n;
for(i=1;i<=n;i++) f>>v[i];
f>>m;
for(i=1;i<=m;i++) {
f>>x>>y;
if(x==0) g<<val(y)<<endl;
if(x==1) g<<pozmax(y)<<endl;
if(x==2) g<<pozmin(y);
}
return 0;
}