#include <string>
#include <vector>

using namespace std;

int solution(int num1, int num2) {
    int answer = 0;
    
    if((num1>= -50000)&&(num1<=50000) &&
        (num2>=-50000)&&(num2<=50000))
        
        answer = num1 - num2;
    
    return answer;
    
}

문제 출처: https://school.programmers.co.kr/learn/challenges/

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