Created
June 8, 2020 19:56
-
-
Save Shad0wSeven/ae814a64018290c6184d39fe4fd3f485 to your computer and use it in GitHub Desktop.
justin loves emily
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
ID: ayushn.2 | |
TASK: sprime | |
LANG: C++11 | |
*/ | |
#include <iostream> | |
#include <fstream> | |
#include <cmath> | |
#include <vector> | |
using namespace std; | |
bool checkPrime(int number) { | |
int x = sqrt(number); // Check this once, and not on every execution | |
for(int i = 2; i <= x; i++) { | |
if(number % i == 0) | |
return false; | |
} | |
return true; | |
} | |
vector<int> oneDigit() { | |
vector<int> answer; | |
answer.push_back(2); | |
answer.push_back(3); | |
answer.push_back(5); | |
answer.push_back(7); | |
return answer; | |
} | |
vector<int> twoDigit() { | |
vector<int> answer; | |
// Generate Primes | |
int bases[4] = {2, 3, 5, 7}; | |
int oddNums[5] = {1, 3, 5, 7, 9}; | |
for(int i = 0; i < 4; i++) { | |
for(int j = 0; j < 5; j++) { | |
int z = 10*bases[i] + oddNums[j]; | |
if(checkPrime(z)) { | |
answer.push_back(z); | |
} | |
} | |
} | |
return answer; | |
} | |
int main() | |
{ | |
ofstream fout ("sprime.out"); | |
ifstream fin ("sprime.in"); | |
int N; | |
fin >> N; | |
switch (N) { | |
case 1: | |
vector<int> answer = oneDigit(); | |
break; | |
case 2: | |
vector<int> answer = twoDigit(); | |
} | |
fout << "NotSetYet" << endl; | |
return 0; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment