오늘의 코딩공부_4.19

백준문제풀이

문제-10950번
package 자료구조이해;

import java.util.*;

public class Main{
	public static void main(String args[]){	

		Scanner sc=new Scanner(System.in);
		
		int num=sc.nextInt();
		int a;
		int b;
		for(int i=0; i<num; i++) {
		 a=sc.nextInt();
		 b=sc.nextInt();
		 System.out.println(a+b);
		}

		sc.close();
		}
	}

배우는 것
System.out.println(sc.nextInt()+sc.nextInt()); 형태로 써도 가능

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백준-11021번

package 자료구조이해;

import java.util.*;

public class Main{
	public static void main(String args[]){	

		Scanner sc=new Scanner(System.in);
		
		int num=sc.nextInt();
		int a;
		int b;
		for(int i=0; i<num; i++) {
		 a=sc.nextInt();
		 b=sc.nextInt();
		int c=a+b;
		System.out.printf("Case #"+(i+1)+": ");
		 System.out.println(c);
		}

		sc.close();
		}
	}

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백준-11022

package 자료구조이해;

import java.util.*;

public class Main{
	public static void main(String args[]){	

		Scanner sc=new Scanner(System.in);
		
		int num=sc.nextInt();
		int a;
		int b;
		for(int i=0; i<num; i++) {
		 a=sc.nextInt();
		 b=sc.nextInt();
		int c=a+b;
		System.out.printf("Case #"+(i+1)+": ");
		System.out.printf(a +" + "+b+" = ");
		 System.out.println(c);
		}

		sc.close();
		}
	}

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문제-2439번

package 자료구조이해;

import java.util.*;

public class Main{
	public static void main(String args[]){	

		Scanner sc=new Scanner(System.in);
		
		int num=sc.nextInt();

		for(int i=0; i<num; i++) {
			System.out.println(" ".repeat(num-(i+1))+"*".repeat(i+1));
		}

		sc.close();
		}
	}

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문제-2439번

package 자료구조이해;

import java.util.*;

public class Main{
	public static void main(String args[]){	

		Scanner sc=new Scanner(System.in);
		
		int num=sc.nextInt();

		for(int i=0; i<num; i++) {
			System.out.println(" ".repeat(num-(i+1))+"*".repeat(i+1));
		}

		sc.close();
		}
	}

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문제-