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Erik Erik8979

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Erik8979 / Big integer multiplication using vector.cpp
Created Mar 30, 2020
Big integer multiplication method using vector! (Elements represent each number in decimal.)
View Big integer multiplication using vector.cpp
#include <iostream>
#include <string>
#include <vector>
long long int reg_factorial(int num) {
long long int res = 1;
for (int i = num; i > 0; i--) res *= i;
return res;
std::vector<long long int> spe_factorial(int num) {
Erik8979 / class_example.cpp
Created Mar 26, 2020
personally designed "class format snippet"
View class_example.cpp
//C++ class example
#include <iostream>
#include <string>
class Box {
int l;
int b;
long long int h;
Erik8979 / vector_element_connect.cpp
Created Mar 19, 2020
connecting elements in every possible cases.
View vector_element_connect.cpp
// How to connect elements in every possible cases.
#include <iostream>
#include <vector>
int main() {
// n : number of elements in vector
int n; std::cin >> n;
std::vector<int> vec(n);
for (int i = 0; i < n; i++) {
Erik8979 / vector_element_erasing.cpp
Created Mar 19, 2020
erasing multiple array elements
View vector_element_erasing.cpp
//Deleting multiple elements.
//solution is to make duplicated vector.
#include <iostream>
#include <vector>
int main() {
std::vector<int> array;
std::vector<int> arr;
for (int i = 0; i < array.size(); i++) {
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