[BOJ/Step3] for문 (C++)

https://www.acmicpc.net/problem/2739 : 구구단

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = 1; i < 10; i++){
​​​​​​​​cout << n << " * " << i << " = " << n*i << endl;
​​​​}
}

 

https://www.acmicpc.net/problem/10950 : A + B - 3

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = 0; i < n; i++){
​​​​​​​​int a, b;
​​​​​​​​cin >> a >> b;
​​​​​​​​cout << a + b << endl;
​​​​}
}

 

https://www.acmicpc.net/problem/8393 : 합

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n, count = 0;
​​​​cin >> n;
​​​​for(int i = 0; i < n; i++)
​​​​​​​​count += i+1;
​​​​cout << count << endl;
}

 

https://www.acmicpc.net/problem/15552 : 빠른 A+B

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​scanf("%d", &n);
​​​​for(int i = 0; i < n; i++){
​​​​​​​​int a, b;
​​​​​​​​scanf("%d %d", &a, &b);
​​​​​​​​printf("%d\n", a + b);
​​​​}
}

 

https://www.acmicpc.net/problem/2741 : N 찍기

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = 0; i < n; i++)
​​​​​​​​printf("%d\n", i+1);
}

 

https://www.acmicpc.net/problem/2742 : 기찍 N

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = n; i > 0; i--)
​​​​​​​​printf("%d\n", i);
}

 

https://www.acmicpc.net/problem/11021 : A + B - 7

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int t;
​​​​scanf("%d", &t);
​​​​for(int i = 0; i < t; i++){
​​​​​​​​int a, b;
​​​​​​​​scanf("%d %d", &a, &b);
​​​​​​​​printf("Case #%d: %d\n", i + 1, a + b);
​​​​}
}

 

https://www.acmicpc.net/problem/11022 : A + B - 8

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int t;
​​​​scanf("%d", &t);
​​​​for(int i = 0; i < t; i++){
​​​​​​​​int a, b;
​​​​​​​​scanf("%d %d", &a, &b);
​​​​​​​​printf("Case #%d: %d + %d = %d\n", i + 1, a, b, a + b);
​​​​}
}

 

https://www.acmicpc.net/problem/2438 : 별 찍기 - 1

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = 1; i <= n; i++){
​​​​​​​​for(int j = 1; j <= i; j++)
​​​​​​​​​​​​printf("*");
​​​​​​​​printf("\n");
​​​​}
}

 

https://www.acmicpc.net/problem/2439 : 별 찍기 - 2

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n;
​​​​cin >> n;
​​​​for(int i = 1; i <= n; i++){
​​​​​​​​for(int j = 1; j <= n - i; j++)
​​​​​​​​​​​​printf(" ");
​​​​​​​​for(int j = 1; j <= i; j++)
​​​​​​​​​​​​printf("*");
​​​​​​​​printf("\n");
​​​​}
}

 

https://www.acmicpc.net/problem/10871 : X보다 작은 수

c++

닫기 줄바꿈

#include <iostream>
using namespace std;

int main(void){
​​​​int n, x;
​​​​cin >> n >> x;
​​​​for(int i = 0; i < n; i++){
​​​​​​​​int t;
​​​​​​​​cin >> t;
​​​​​​​​if(t < x) cout << t << " ";
​​​​}
}