[Pwnable Study] 1주차 과제 - 백준

I. 입출력과 사칙연산

[2552] Hello World

[C99]

#include <stdio.h> 
int main(void){
    printf("Hello World!");
    return 0;
}

[C++17]

#include <iostream>

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

[Python3]

print("Hello World!")

 

[1000] A+B

[C99]

 

//C99
#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    printf("%d", a+b);
    return 0;
}​

[C++17]

//C++17
#include <iostream>

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

[Python3]

a, b = map(int, input().split())
print(a+b)

 

[1001]  A-B

[C99]

#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    printf("%d", a-b);
    return 0;
}

[C++17]

#include <iostream>

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

[Python3]

a, b = map(int, input().split())
print(a-b)

 

[10998] AxB

[C99]

#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    printf("%d", a*b);
    return 0;
}

[C++17]

#include <iostream>

int main(){
    int a, b;
    std::cin>>a;
    std::cin>>b;
    
    std::cout<<a*b;
    return 0;
}

[Python3]

a, b = map(int, input().split())
print(a*b)

 

[1008] A/B

[C99]

#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    printf("%.9lf", (double)a/(double)b);
    
    return 0;
}

[C++17]

#include <iostream>

int main(){
    int a, b = 0;
    std::cin>>a;
    std::cin>>b;
    
    printf("%.9lf", (double)a/(double)b);
    return 0;
}

[Python3]

a, b = input().split()
a = float(a)
b = float(b)
print(round(a/b, 9))

 

[10869] 사칙연산

[C99]

#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    printf("%d\n", a+b);
    printf("%d\n", a-b);
    printf("%d\n", a*b);
    printf("%d\n", a/b);
    printf("%d", a%b);
    
    return 0;
}

[C++17]

#include <iostream>

int main(){
    int a, b;
    std::cin>>a;
    std::cin>>b;
    
    std::cout<<a+b<<std::endl;
    std::cout<<a-b<<std::endl;
    std::cout<<a*b<<std::endl;
    std::cout<<a/b<<std::endl;
    std::cout<<a%b;
    return 0;
}

[Python3]

a, b = map(int, input().split())
print(a+b)
print(a-b)
print(a*b)
print(int(a/b))
print(a%b)

 

[10926] ??!

[C99]

#include <stdio.h>

int main(void){
    char str[50] = {0, };
    scanf("%s", str);
    printf("%s??!", str);
    return 0;
}

[C++17]

#include <iostream>
#include <string>
int main(){
    std::string str;
    std::cin>>str;
    std::cout<<str<<"??!";
    return 0;
}

[Python3]

print(input() + '??!')

 

[18108] 1998년생인 내가 태국에서는 2541년생?!

[C99]

#include <stdio.h>

int main(void){
    int year;
    scanf("%d", &year);
    printf("%d", year-543);
    return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int year;
    cin>>year;
    cout<<year-543;
    return 0;
}

[Python3]

year = input()
year = int(year)

print(year-543);

 

[3003] 킹, 퀸, 룩, 비숍, 나이트, 폰

[C99]

#include <stdio.h>

int main(void){
    int k, q, r, b, n, p = 0;
    scanf("%d %d %d %d %d %d", &k, &q, &r, &b, &n, &p);
    printf("%d %d %d %d %d %d", 1-k, 1-q, 2-r, 2-b, 2-n, 8-p);
    return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int k, q, r, b, n, p = 0;
    cin>>k;
    cin>>q;
    cin>>r;
    cin>>b;
    cin>>n;
    cin>>p;
    cout<<1-k<<" "<<1-q<<" "<<2-r<<" "<<2-b<<" "<<2-n<<" "<<8-p;
    return 0;
}

[Python3]

ar = [1, 1, 2, 2, 2, 8]
asdf= list(map(int, input().split()))

for i in range(6):
    print(ar[i]-asdf[i], end=' ')

 

[10430] 나머지

[C99]

#include <stdio.h>

int main(void){
    int a, b, c = 0;
    scanf("%d %d %d", &a, &b, &c);
    printf("%d\n", (a+b)%c);
    printf("%d\n", ((a%c)+(b%c))%c);
    printf("%d\n", (a*b)%c);
    printf("%d", ((a%c)*(b%c))%c);
    
    return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int a, b, c;
    cin>>a;
    cin>>b;
    cin>>c;
    cout<<(a+b)%c<<endl<<((a%c)+(b%c))%c<<endl<<(a*b)%c<<endl<<((a%c)*(b%c))%c;
    return 0;
}

[Python3]

a, b, c = map(int, input().split())

print((a+b)%c)
print(((a%c)+(b%c))%c);
print((a*b)%c);
print(((a%c)*(b%c))%c);

 

[2588] 곱셈

[C99]

#include <stdio.h>

int main(void){
    int a, b = 0;
    scanf("%d %d", &a, &b);
    
    printf("%d\n", a*(b%10));
    printf("%d\n", a*((b%100)-(b%10))/10);
    printf("%d\n", a*(b/100));
    printf("%d\n", a*b);
    
    return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int a, b = 0;
    cin>>a;
    cin>>b;
    cout<<a*(b%10)<<endl<<a*((b%100)-(b%10))/10<<endl<<a*(b/100)<<endl<<a*b;
    
    return 0;
}

[Python3]

a = int(input())
b = input()
print(a*int(b[2]))
print(a*int(b[1]))
print(a*int(b[0]))
print(a*int(b))

 

[10171] 고양이

[C99]

#include <stdio.h>

int main(void){
	printf("\\    /\\\n");
	printf(" )  ( ')\n");
	printf("(  /  )\n");
	printf(" \\(__)|\n");
	return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    cout<<"\\    /\\\n"<<" )  ( ')\n"<<"(  /  )\n"<<" \\(__)|";
    return 0;
}

[Python3]

print("\\    /\\")
print(" )  ( ')")
print("(  /  )")
print(" \\(__)|")

 

[10172] 개

[C99]

#include <stdio.h>

int main(void){
	printf("|\\_/|\n");
	printf("|q p|   /}\n");
	printf("( 0 )\"\"\"\\\n");
	printf("|\"^\"\`    |\n");
	printf("||_/=\\\\__|");
	return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    cout<<"|\\_/|\n"<<"|q p|   /}\n"<<"( 0 )\"\"\"\\\n"<<"|\"^\"\`    |\n"<<"||_/=\\\\__|";
    return 0;
}

[Python3]

print("|\\_/|")
print("|q p|   /}")
print('( 0 )"""\\')
print('|"^"`    |')
print("||_/=\\\\__|")

 

[25083] 새싹

[C99]

#include <stdio.h>

int main(void){
	printf("         ,r\'\"7\n");
	printf("r\`-_   ,\'  ,/\n");
	printf(" \\. \". L_r\'\n");
	printf("   \`~\\/\n");
	printf("      |\n");
	printf("      |\n");
	return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    cout<<"         ,r\'\"7\n"<<"r\`-_   ,\'  ,/\n"<<" \\. \". L_r\'\n"<<"   \`~\\/\n"<<"      |\n"<<"      |";
    return 0;
}

[Python3]

print("         ,r'\"7")
print("r`-_   ,'  ,/")
print(" \\. \". L_r'")
print("   `~\\/")
print("      |")
print("      |")

 

II. 조건문

[1330] 두 수 비교하기

[C99]

#include <stdio.h>

int main(void){
    int a, b;
    scanf("%d %d", &a, &b);
    if(a == b){
        printf("==");
    }else if(a>b){
        printf(">");
    }else{
        printf("<");
    }
    return 0;
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int a, b;
    cin>>a;
    cin>>b;
    
    if(a>b){
        cout<<">";
    }else if(a == b){
        cout<<"==";
    }else{
        cout<<"<";
    }
}

[Python3]

a, b = map(int, input().split())
if a==b:
    print("==");
elif a>b:
    print(">");
else:
    print("<");

 

[9498] 시험 성적

[C99]

#include <stdio.h>

int main(void){
    int g = 0;
    scanf("%d", &g);
        
    if(g<= 100 && g >= 90){
        printf("A");
    }else if(g<= 89 && g>=80){
        printf("B");
    }else if(g<=79 && g>= 70){
        printf("C");
    }else if(g<=69 && g>= 60){
        printf("D");
    }else{
        printf("F");
    }
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int g;
    cin>>g;
    
    if(g <= 100 && g >= 90){
        cout<<"A";
    }else if(g <= 89 && g >= 80){
        cout<<"B";
    }else if(g <= 79 && g >= 70){
        cout<<"C";
    }else if(g <= 69 && g >= 60){
        cout<<"D";
    }else{
        cout<<"F";
    }
}

[Python3]

g = int(input())

if g<=100 and g>= 90:
    print("A")
elif g<=89 and g>= 80:
    print("B")
elif g<=79 and g>= 70:
    print("C")
elif g<=69 and g>= 60:
    print("D")
else:
    print("F")

 

[2753] 윤년

[C99]

#include <stdio.h>

int isLeapYear(int year){
    if((year%4 == 0) && (((year%400) == 0) || (year%100) != 0)){
        return 1;
    }else return 0;
}

int main(){
	int year;
	scanf("%d", &year);
    printf("%d", isLeapYear(year));
    return 0;
}

[C++17]

#include <iostream>
using namespace std;

bool isLeapYear(int year){
    if((year%4 == 0) && (((year%400) == 0) || (year%100) != 0)){
        return 1;
    }else return 0;
}

int main(){
	int year;
	cin>>year;
    cout<<isLeapYear(year);
}

[Python3]

year = int(input())
if (year%4) == 0 and (((year%400) == 0 or (year%100) != 0)):
    print('1')
else:
    print('0')

 

[14681] 사분면 고르기

[C99]

#include <stdio.h>
int quadrant(int x, int y){
    if(x<0){
        if(y<0){
            return 3;
        }else{
            return 2;
        }
    }else{
        if(y<0){
            return 4;
        }else{
            return 1;
        }
    }
}
int main(void){
    int x, y;
    scanf("%d %d", &x, &y);
    printf("%d", quadrant(x, y));
    return 0;
}

[C++17]

#include <iostream>
using namespace std;

int quadrant(int x, int y){
    if(x<0){
        if(y<0){
            return 3;
        }else{
            return 2;
        }
    }else{
        if(y<0){
            return 4;
        }else{
            return 1;
        }
    }
}

int main(){
    int x, y = 0;
    cin>>x;
    cin>>y;
    cout<<quadrant(x, y);
}

[Python3]

x = int(input())
y = int(input())

if x>0 and y>0:
    print('1')
elif x>0 and y<0:
    print('4')
elif x<0 and y>0:
    print('2')
else:
    print('3')

 

[2884] 알람 시계

[C99]

#include <stdio.h>

int main(void){
    int h, m = 0;
    scanf("%d %d", &h, &m);
    
    if(m<45){
        if(h>=1){
            printf("%d %d", h-1, m+15);
        }else{
            printf("23 %d", m+15);
        }
    }else{
        printf("%d %d", h, m-45);
    }
}

[C++17]

#include <iostream>
using namespace std;
int main(void){
    int h, m = 0;
    cin>>h;
    cin>>m;
    
    if(m<45){
        if(h>=1){
            cout<<(h-1)<<" "<<(m+15);
        }else{
            cout<<"23 "<<(m+15);
        }
    }else{
        cout<<h<<" "<<(m-45);
    }
}

[Python3]

h, m = map(int, input().split())
if m < 45:
    if h >= 1:
        print(h-1, m+15)
    elif h < 1:
        print(23, m+15)
else:
    print(h, m-45)

 

[2525] 오븐 시계

[C99]

#include <stdio.h>

int main(void){
    int h, m, t;
    scanf("%d %d %d", &h, &m, &t);
    
    if(m + t < 60){
        m += t;
    }else{
        if(h + (m+t)/60 > 23){
            h += (m+t)/60 - 24;
        }else{
            h += (m+t)/60;
        }
        m = (m+t)%60;
    }
    printf("%d %d", h, m);
}

[C++17]

#include <iostream>
using namespace std;
int main(){
    int h, m, t;
    cin>>h;
    cin>>m;
    cin>>t;
    
    if(m + t < 60){
        m += t;
    }else{
        if(h + (m+t)/60 > 23){
            h += (m+t)/60 - 24;
        }else{
            h += (m+t)/60;
        }
        m = (m+t)%60;
    }
    cout<<h<<" "<<m;
}

[Python3]

h, m = map(int, input().split())
t = int(input())

if m+t < 60:
    m += t
else:
    if (h+((m+t)//60)) > 23:
        h += (m+t)//60 - 24
    else:
        h += (m+t)//60
    m = (m+t)%60
print("%d %d" % (h, m))

 

[2480] 주사위 세개

[C99]

#include <stdio.h>

int main(void){
    int a, b, c = 0;
    int max = 0;
    scanf("%d %d %d", &a, &b, &c);
    
    if((a == b)&&(b == c)){
        printf("%d", 10000+(a*1000));
    }else if(a == b){
        printf("%d", 1000 + (a*100));
    }else if(b == c){
        printf("%d", 1000 + (b*100));
    }else if(a == c){
        printf("%d", 1000 + (c*100));
    }else{
        max = a;
        if(b > max) max = b;
        if(c > max) max = c;
        
        printf("%d", max*100);
    }
}

[C++17]

#include <iostream>
using namespace std;

int main(){
    int a, b, c = 0;
    int max = 0;
    cin>>a;
    cin>>b;
    cin>>c;
    
    if((a == b)&&(b == c)){
        cout<<10000+(a*1000);
    }else if(a == b){
        cout<<1000+(a*100);
    }else if(b == c){
        cout<<1000 + (b*100);
    }else if(a == c){
        cout<<1000+(c*100);
    }else{
        max = a;
        if(b > max) max = b;
        if(c > max) max = c;
        
        cout<<max*100;
    }
}

[Python3]

a, b, c = map(int, input().split())
max = a
if (a==b) and (b==c):
    print(10000 + 1000*a)
elif (a==b):
    print(1000+a*100)
elif (c==b):
    print(1000+b*100)
elif (a==c):
    print(1000+c*100)
else:
    if b > max:
        max = b
    if c > max:
        max = c
    print(max*100)