यह एक सी++ प्रोग्राम है जो जोड़े के क्रमबद्ध वेक्टर में बाइनरी सर्च को लागू करता है।
एल्गोरिदम
Begin Declare a structure keycompare. Function operator()(const pair& v, const int& k) returns Booleans. Status = v.first < k. Return status. Function operator()(const pair& v, const int& k) returns Booleans. Status = k < v.first. Return status. Declare a vector v. Declare key and value pair within v of the integer datatype. Call push_back() function to insert values in v vector. Call sort() function to sort all elements of the vector v. Print “Sorted vector”. Print “Key” “Value”. for (pair& n : v) print the first and second value of n. if (binary_search(v.begin(), v.end(), 50,keycompare())) then print “50 exists in vector”. Else Print “50 does not exist”. if (binary_search(v.begin(), v.end(), 7,keycompare() )) then print “7 exists in vector”. Else Print “7 does not exist”. End.
उदाहरण कोड
#include <algorithm> #include <iostream> #include <vector> using namespace std; struct keycompare { bool operator()(const pair<int, int>& v, const int& k) { return (v.first < k); } bool operator()(const int& k, const pair<int, int>& v) { return (k < v.first); } }; int main() { vector<pair<int, int>> v; v.push_back(make_pair(7, 26)); v.push_back(make_pair(6, 76)); v.push_back(make_pair(4, 16)); v.push_back(make_pair(5, 36)); sort(v.begin(), v.end()); cout<<"Sorted vector"<<endl; cout << "KEY" << '\t' << "VALUE" << endl; for (pair& n : v) cout << n.first << '\t' << n.second << endl; if (binary_search(v.begin(), v.end(), 50,keycompare())) cout << "50 exists in vector"; else cout << "50 does not exist"; cout << endl; if (binary_search(v.begin(), v.end(), 7,keycompare() )) cout << "7 exists in vector"; else cout << "7 does not exist"; return 0; }
आउटपुट
Sorted vector KEY VALUE 4 16 5 36 6 76 7 26 50 does not exist 7 exists in vector