Lecture 6 Code Snippets

Slide 5

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
int main()
{
    int a, b;
    a==b;
    a<=b;

    //no error
    bool b1;

    b1 = a==b;
    printf("%s\n", b1? "true" : "false");
    b1 = a <= b;
    printf("%s\n", b1? "true" : "false");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 7

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
int main()
{
    bool a = true , b = false , c;

    c = !a;
    printf("%s\n", c ? "true" : "false");

    c = a && b;
    printf("%s\n", c ? "true" : "false");

    c = a||b;
    printf("%s\n", c ? "true" : "false");

    c = !a || b;
    printf("%s\n", c ? "true" : "false");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 9

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
int main()
{
    int a = 10 , b = 20;
    float f = 54.677f;
    double d = 547.775;
    char c1 = 'A' , c2 = 'a';
    bool b1;

    b1 = a == f;
    printf("%s\n", b1 ? "true" : "false");

    b1 = a <= d + 5;
    printf("%s\n", b1 ? "true" : "false");

    b1 = d < c1 * 10;
    printf("%s\n", b1 ? "true" : "false");

    b1 = c1 == c2;
    printf("%s\n", b1 ? "true" : "false");

    b1 = '1' < '2';
    printf("%s\n", b1 ? "true" : "false");

    b1 = c1 + f < d + a;
    printf("%s\n", b1 ? "true" : "false");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 10

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
int main()
{
    bool b1,b2;
    int i = 0, j = 20;

    b1 = i && j;
    printf("b1 = %s\n", b1 ? "true" : "false");

    b2 = j || j;
    printf("b2 = %s\n", b2 ? "true" : "false");

    i = b1 + b2;
    printf("i = %d\n",i);

    j = (i < j) + (b1 && b2);
    printf("j = %d\n",j);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 13

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
#include <math.h>
int main()
{
    int i = -1;
    bool a = true, b = false, c = true;

    bool d = a || b || c;
    printf("d = %s\n", d ? "true" : "false");

    bool d = b && (a || c);
    printf("d = %s\n", d ? "true" : "false");

    bool d = (i > 0) && (sqrt(i) > 5.6);
    printf("d = %s\n", d ? "true" : "false");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 18

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int number, remainder;
    scanf("%d", &number);

    remainder = number % 2;

    if(remainder == 0)
        printf("The number is even.\n");
    else
        printf("The number is odd.\n");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 20

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int num;
    char c;

    printf("Enter a char: ");
    scanf(" %c", &c);

    printf("Enter a number: ");
    scanf("%d", &num);

    if(num > 0)
        printf("Your number is larger than 0\n");
    else
        printf("Your number is less than or equal 0\n");

    if( c >= '0' || c <= '9')
        printf("Your char is Numeric\n");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 22

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int numg;
    char alphag;

    scanf("%d", &numg);

    if(numg < 25)
        alphag = 'D';
    if(numg >= 25 && numg < 50)
        alphag = 'C';
    if(numg >= 50 && numg < 75)
        alphag = 'B';
    if(numg >= 75)
        alphag = 'A';

    printf("%c\n", alphag);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 25

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int numg;
    char alphag;

    scanf("%d", &numg);

    if(numg < 25)
        alphag = 'D';
    else
    {
        if(numg < 50)
            alphag = 'C';

        else
        {
            if(numg < 75)
                alphag = 'B';
            else
                alphag = 'A';
        }
    }

    printf("%c\n", alphag);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 27

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int numg;
    char alphag;

    scanf("%d", &numg);

    if(numg < 25)
        alphag = 'D';
    else if(numg < 50)
        alphag = 'C';
    else if (numg < 75)
        alphag = 'B';
    else
        alphag = 'A';

    printf("%c\n", alphag);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 28

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int numg;
    char alphag;

    scanf("%d", &numg);

    if(numg < 50)
    {
        if(numg < 25)
            alphag = 'D';
        else
            alphag = 'C';
    }

    else
    {
        if(numg < 75)
            alphag = 'B';
        else
            alphag = 'A';
    }

    printf("%c\n", alphag);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 29

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    char c;
    scanf(" %c", &c);

    if( c <= 'z' && c>= 'a' || c <= 'Z' && c >= 'A')
    {
        if(c > 'a')
            printf("The char is Lowercase\n");
        else
            printf("The char is Uppercase\n");
    }

    else if( c<= '9' && c>= '1')
    {
        if( c > '5')
            printf("The char is greater than 5\n");
        else
            printf("The char is less than or equal 5\n");
    }

    else
    printf("The char is not either alphabetic or numeric\n");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 32

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
//duplicate zero
int main()
{
    int n;
    printf("Enter a number: ");
    scanf("%d", &n);

    int pw=1, n2 = n;
    while(n > 1)
    {
        pw *= 10;
        n/=10;
    }
    pw/=10;

    while(pw >= 1)
    {
        int c = n2 / pw;

        if(c==0)
            printf("00");
        else
            printf("%d", c);

        n2 %= pw;
        pw /= 10;
    }
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 37

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int res, opd1, opd2;
    char opr;
    printf("Operand1 : ");
    scanf("%d", &opd1);
    printf("Operand2 : ");
    scanf("%d", &opd2);
    printf("Operator : ");
    scanf(" %c", &opr);

    switch(opr)
    {
        case '-':
            res = opd1 - opd2;
            break;
        case '+':
            res = opd1 + opd2;
            break;
        case '/':
            res = opd1 / opd2;
            break;
        case '*':
            res = opd1 * opd2;
            break;
        default:
            printf("Invalid operator\n");
            return -1;
    }

    printf("%d %c %d = %d", opd1 , opr, opd2, res);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 43

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
#include <stdbool.h>
int main()
{
    bool b;
    int x, y;
    scanf("%d %d", &x, &y);

    switch(x)
    {
        case 0:
            b=0;
            break;
        case 1:
            switch(y)
            {
                case 0:
                    b=0;
                    break;
                case 1:
                    b=1;
                    break;
            }
    }

    printf("%s\n", b ? "true" : "false");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 46

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int x, signum;
    scanf("%d", &x);

    signum = (x < 0) ? -1 : ((x==0) ? 0 : 1);

    printf("%d", signum);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 47

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int numg;
    scanf("%d", &numg);
    int d = numg / 25;

    char g = (d==0) ? 'D' : ( (d==1) ? 'C' : ((d==2) ? 'B' : 'A'));

    printf("%c\n", g);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 48

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    double d1, d2;
    d1 = 1e20 + 1;
    d2 = 1e20 - 1;
    if(d1 == d2)
     printf("They are equal :-o \n");
    else
     printf("They are not equal :D \n");
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 322

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main(void){
    int n, x1, x2, x3, q1, q2, result;
    printf("Enter a 3-digit number: ");
    scanf("%d", &n);

    if((n < 100) || (n > 999))
    {
        printf("Wrong input\n");
        return -1;
    }

    x1 = n / 100;
    x2 = (n % 100) / 10;
    x3 = n % 10;
    q1 = 100;
    q2 = 10;

    if(x3 == 0)
    {
        q1 *= 10;
        q2 *= 10;
    }

    if(x2 == 0)
        q1 *= 10;

    result = (x1 * q1) + (x2 * q2) + x3;
    printf("result = %d\n", result);

    return 0;
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}

---

Slide 323

CC++

/** By: Negin Eini-pour **/
#include <stdio.h>
int main()
{
    int num;
    scanf("%d", &num);

    int pw=1;
    int res=0;

    while(num!=0)
    {
        if(num % 10)
            pw *= 10;

        res += pw * (num % 10);

        num /= 10;
        pw *= 10;
    }

    printf("%d", res);
}

#include <iostream>

int main() {
    // Your code here
    return 0;
}