Cod sursa(job #2646193)

Utilizator benz87Harshit Gupta benz87 Data 31 august 2020 12:50:35
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 2.04 kb
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimization ("unroll-loops")

#include <bits/stdc++.h>

using namespace std;

void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
#define ll long long int

int main(){
    ifstream in("cautbin.in");
    ofstream out("cautbin.out");
    int n;
    in>>n;
    vector<int> a(n);
    for(int i=0;i<n;i++)in>>a[i];
    int q;
    in>>q;
    int ty,val;
    for(int i=0;i<q;i++){
        in>>ty>>val;
        if(ty==0){
            int pos=upper_bound(a.begin(),a.end(),val)-a.begin();
            if(pos==0 || a[pos-1]!=val){
                out<<"-1\n";
            }
            else{
                out<<pos<<"\n";
            }
        }
        else if(ty==1){
            int pos=upper_bound(a.begin(),a.end(),val)-a.begin();
            out<<pos<<"\n";
        }
        else{
            int pos=upper_bound(a.begin(),a.end(),val-1)-a.begin();
            //debug(pos,val-1);
            out<<pos+1<<"\n";
        }
    }
    return 0;
}