[BOJ/C++] 단계별 (입출력과 사칙연산)

2557

https://www.acmicpc.net/problem/2557

#include <iostream>

using namespace std;

int main(void) {
    cout << "Hello World!";
    return 0;
}

1000

https://www.acmicpc.net/problem/1000

#include <iostream>

using namespace std;

int main(void) {
    int a,b;
    cin >> a >> b;
    cout << a+b;
    return 0;
}

1001

https://www.acmicpc.net/problem/1001

#include <iostream>

using namespace std;

int main(void) {
    int a,b;
    cin >> a >> b;
    cout << a-b;
    return 0;
}

10998

https://www.acmicpc.net/problem/10998

#include <iostream>

using namespace std;

int main(void) {
    int a,b;
    cin >> a >> b;
    cout << a*b;
}

1008

https://www.acmicpc.net/problem/1008

#include <iostream>

using namespace std;

int main(void) {
    double a,b;
    cin >> a >> b;
    cout << fixed;
    cout.precision(9);
    cout << a/b << "\n";
    return 0;
}

10869

https://www.acmicpc.net/problem/10869

#include <iostream>

using namespace std;

int main(void) { 
    int a,b;
    cin >> a >> b;
    cout << a+b << "\n";
    cout << a-b << "\n";
    cout << a*b << "\n";
    cout << a/b << "\n";
    cout << a%b; 
    return 0;
}

10926

https://www.acmicpc.net/problem/10926

#include<iostream>

using namespace std;

int main(void) { 
    string id;
    cin >> id;
    cout << id << "??!";
    return 0;
}

18108

https://www.acmicpc.net/problem/18108

#include<iostream>

using namespace std;

int main(void) { 
    int y;
    cin >> y;
    cout << y-543;
    return 0;
}

10430

https://www.acmicpc.net/problem/10430

#include<iostream>

using namespace std;

int main(void) { 
    int a,b,c;
    cin >> a >> b >> c;
    cout << (a+b)%c << "\n";
    cout << ((a%c) +(b%c))%c << "\n";
    cout << (a*b)%c << "\n";
    cout << ((a%c)*(b%c))%c;
    return 0;
}

11382

https://www.acmicpc.net/problem/11382

#include<iostream>

using namespace std;

int main(void) { 
    long long a,b,c;
    cin >> a >> b >> c;
    cout << a+b+c;
    return 0;
}