[Java11] 25304번 : 영수증

https://www.acmicpc.net/problem/25304

정답

import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main{
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String str = br.readLine();
        int x = Integer.parseInt(str);
        String str2 = br.readLine();
        int n = Integer.parseInt(str2);
        StringTokenizer st;
        
        int sum = 0;
        int line=0;
        
        for(int i=1; i<=n;i++){
            st = new StringTokenizer(br.readLine()," ");
            line = Integer.parseInt(st.nextToken())*Integer.parseInt(st.nextToken());
            sum += line;
        }
        if(x==sum){
            System.out.println("Yes");
        }
        else{
            System.out.println("No");
        }
    }
}