GeeksForGeeks

My solutions to gfg problems.

An effort to maintain consistency.

Important References/Points :

• big int in C++

#include <boost/multiprecision/cpp_int.hpp> 
using namespace boost::multiprecision; 
using namespace std;

• lowerbound and upperbound

vector<int>::iterator lower,upper; 
lower = lower_bound (v.begin(), v.end(), val);  
upper = upper_bound (v.begin(), v.end(), val);  

• special case in strings as input

cin >> b;    // int as input
cin.ignore();   // used when taking input of a string after a number
getline(cin, d);    // a sentence as input

• string class

string str3(5, '#');    // str3="#####"
string str4(str1, 6, 6);    // next 6 chars starting from char at index 6 of str1
string str5(str2.begin(), str2.begin() + 5);    // same as above, uses iterator

• Algorithm library in STL