# 6์ฅ Programming ํ์ด (1)
249p_1๋ฒ)
#include <stdio.h>
int main()
{
int i = 0;
for (i = 60; i >= 0; i--)
{
printf("%d ", i);
}
printf("๋ฐ์ฌ");
return 0;
}
249p_2๋ฒ)
#include <stdio.h>
int main()
{
int num;
printf("๋ช ๋ฒ์ด๋ ๋ฐ๋ณตํ ๊น์?: ");
scanf_s("%d", &num);
for (int i = num; i > 0; i--)
{
printf("์๋
ํ์ธ์?\n");
}
return 0;
}
249p_3๋ฒ)
#include <stdio.h>
int main()
{
for (int i = 1; i <= 7; i++)
{
for (int a = 1; a <= i; a++)
{
printf("%d", a);
}
for (int b = 1; b <= 7 - i; b++)
{
printf("*");
}
printf("\n");
}
return 0;
}
249p_4๋ฒ)
#include <stdio.h>
int main()
{
int num, sum;
sum = 0;
while (1)
{
printf("์ ์๋ฅผ ์
๋ ฅํ์์ค: ");
scanf_s("%d", &num);
sum += num;
if (num == 0)
{
printf("\nํฉ๊ณ: %d", sum);
break;
}
}
return 0;
}
250p_5๋ฒ)
#include <stdio.h>
int main()
{
for (int i = 1; i <= 100; i++)
{
if ((i % 3) == 0)
{
printf("%d ", i);
}
}
return 0;
}
250p_6๋ฒ)
#include <stdio.h>
int main()
{
for (int i = 1; i <= 100; i++)
{
if ((i % 3) == 0 && (i % 5) == 0)
{
printf("%d ", i);
}
}
return 0;
}
250p_7๋ฒ)
#include <stdio.h>
int main()
{
int a, b, c;
int sum = 0;
printf("์์ ์ ์: ");
scanf_s("%d", &a);
c = a;
printf("์ข
๋ฃ ์ ์: ");
scanf_s("%d", &b);
for (;a <= b; a++)
{
sum += a;
}
printf("%d์์ %d๊น์ง์ ํฉ: %d", c, b, sum);
return 0;
}
250p_8๋ฒ)
#include <stdio.h>
int main()
{
for (char i = 'A'; i <= 'F'; i++)
{
printf("%d: %c\n", i, i);
}
return 0;
}
251p_9๋ฒ)
#include <stdio.h>
int main()
{
char word;
int sum = 0;
for (;;)
{
printf("๋ฌธ์๋ฅผ ์
๋ ฅํ์์ค(์ข
๋ฃ๋ .): ");
word = getchar();
getchar(); //์ด ์ฝ๋๊ฐ ์์ผ๋ฉด "๋ฌธ์๋ฅผ ์
๋ ฅํ์์ค(์ข
๋ฃ๋ .): "๊ฐ 2๋ฒ์ฉ ์ถ๋ ฅ๋๋ค.
if (word == 'a')
{
sum++;
}
if (word == '.')
{
break;
}
}
printf("\na์ ๊ฐ์: %d", sum);
return 0;
}
250p_10๋ฒ)
#include <stdio.h>
int main()
{
printf("===========================\n");
printf("ํ์จ์จ๋ ์ญ์จ์จ๋\n");
printf("===========================\n");
for (int f = 0; f <= 100; f += 10)
{
printf("%d %d\n", f, (int)((f - 32.0) * 5.0 / 9.0));
}
return 0;
}