[SWEA] 다솔이의 월급 상자

 

 

[문제]

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AWdXofhKFkADFAWn

SW Expert Academy

 

 

 

[소스 코드]

import java.io.*;
import java.util.*;
public class Solution {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;
		int T = Integer.parseInt(br.readLine());
		for(int tc=1;tc<=T;tc++) {
			int n = Integer.parseInt(br.readLine());
			double result = 0;
			for(int i=0;i<n;i++) {
				st = new StringTokenizer(br.readLine());
				double p = Double.parseDouble(st.nextToken());
				double x = Double.parseDouble(st.nextToken());
				result += p * x;
			}
			System.out.println("#"+tc+" "+result);
		}
	}
}