chap2_exer_2.c

#include <stdio.h>

int main(int argc, char **argv)
{
    int a, b, c;
    a = 13;
    b = a + 12;
    printf("%d %d\n", a, b);
    c = a + b;
    a = a + 11;
    printf("a = %d b = %d c = %d\n", a, b, c);
    return 0;
}

chap2_exer_3.c

#include <stdio.h>


int main(int argc, char **argv)
{
    int a = 75;
    printf(" $ %d |\n", a);
    printf(" $ %5d |\n", a);
    printf(" $ %-5d |\n", a);
    printf(" $ %05d |\n", a);
    return 0;
}

chap2_exer_4.c

#include <stdio.h>


int remanents_9()
{
    /**
     * Give the value of (a) 39 % 7 (b) 88 % 4 (c) 100 % 11 (d) -25 % 9
     */

    char out_format[8] = "|%3d|\n";
    int a = 39 % 7;
    int b = 88 % 4;
    int c = 100 % 11;
    int d = -25 % 9;

    printf("#09 remanentes\n");
    printf(out_format, a);
    printf(out_format, b);
    printf(out_format, c);
    printf(out_format, d);

    return 0;
}


int divisions_10()
{
    /**
     * Give the value of (a) 39 / 7 (b) 88 / 4 (c) 100 / 11 (d) -25 / 9
     */

    char out_format[8] = "|%3d|\n";
    int a = 39 / 7;
    int b = 88 / 4;
    int c = 100 / 11;
    int d = -25 / 9;

    printf("\n#10 divisiones\n");
    printf(out_format, a);
    printf(out_format, b);
    printf(out_format, c);
    printf(out_format, d);

    return 0;
}


int sum_11()
{
    /**
     * Write a statement that prints the value of the int variable sum, right
     * justified in a field width of 6.
     */

    char out_format[8] = "|%5d|\n";
    int sum = 10 + 40;

    printf("\n#11 sum\n");
    printf(out_format, sum);

    return 0;
}


int rightmost_12()
{
    /**
     * You are required to print the values of the int variables b, h, and n.
     * Write a statement that prints b with its rightmost digit in column 10,
     * h with its rightmost digit in column 20, and n with its rightmost digit
     * in column 30.
     */

    int b = 10;
    int h = 123;
    int n = -2345;

    printf("\n#12 rightmost\n");
    printf("%-10d%-10d%-10d|\n", b, h, n);

    return 0;
}


int rightmost_13()
{
    /**
     * Write statements that print the values of b, h, and n lined up one
     * below the other with their rightmost digits in column 8.
     */

    char out_format[7] = "%-8d|\n";
    int b = 10;
    int h = 123;
    int n = -2345;

    printf("\n#13 rightmost\n");
    printf(out_format, b);
    printf(out_format, h);
    printf(out_format, n);

    return 0;
}


int scientific_notation_14()
{
    /**
     * Using scientific notation, write the number 345.72 in four different
     * ways.
     */

    float n = 345.72;

    printf("\n#14 scientific_notation\n");
    printf("%6.3f x 10²\n", n / 10);
    printf("%6.3f x 10³\n", n / 100);
    printf("%6.3f x 10⁴\n", n / 1000);
    printf("%6.3f x 10⁵\n", n / 10000);

    return 0;
}


int decimal_places_15()
{
    /**
     * Write a statement that prints the value of the double variable total to
     * 3 decimal places, right justified in a field width of 9.
     */

    float total = 1234.123;

    printf("\n#15 decimal places\n");
    printf("%9.3f\n", total);

    return 0;
}


int rightmost_float_16()
{
    /**
     * You need to print the values of the float variables a, b, and c to 1
     * decimal place.  Write a statement that prints a with its rightmost
     * digit in column 12, b with its rightmost digit in column 20, and c with
     * its rightmost digit in column 32.
     */

    char out_format[32] = "%11.1f%19.1f%31.1f\n";
    float a = 123.4;
    float b = 567.8;
    float c = 910.1;

    printf("\n#16 rightmost_float\n");
    printf(out_format, a, b, c);

    return 0;
}


int rightmost_double_18()
{
    /**
     * Write statements to print the values of 3 double variables a, b, and c,
     * to 2 decimal places, The values must be printed one below the other,
     * with their rightmost digits in column 12.
     */

    char out_format[36] = "%12.2f%12.2f%12.2f\n";
    float a = 123.45;
    float b = 657.91;
    float c = 112.13;

    printf("\n#18 rightmost double\n");
    printf(out_format, a, b, c);
}


int nearest_whole_number_19()
{
    /**
     * How can you print the value of a double variable, rounded to the
     * nearest whole number?
     */
    double a = 12.9;
    double b = 12.5;
    double c = 12.1;

    printf("\n#19 nearest_whole_number\n");
    printf("a = %2.0f b = %2.0f c = %2.0f\n", a, b, c);
}


int main(int argc, char **argv)
{
    remanents_9();
    divisions_10();
    sum_11();
    rightmost_12();
    rightmost_13();
    scientific_notation_14();
    decimal_places_15();
    rightmost_float_16();
    rightmost_double_18();
    nearest_whole_number_19();

    return 0;
}

int_ops.c

#include <stdio.h>


int main() {
    char out_format[] = "%3d %-3d\n";  
    int a = 15;
    int b = 24;

    printf(out_format, b - a + 7, b - (a + 7));
    printf(out_format, b - a - 4, b - (a - 4));
    printf(out_format, b % a / 2, b % (a / 2));
    printf(out_format, b * a / 2, b * (a / 2));
    printf(out_format, b / 2 * a, b / (2 * a));
}

int_range.c

#include <stdio.h>


int main() {
    int max_int, min_int;

    max_int = 2147483713;
    min_int = 2147483649;
}

p1-1.c

#include <stdio.h>

int main() {
    int a, s;
    printf("Ingresar la longitud de un lado:");
    scanf("%d", &s);
    a = s * s;
    printf("El area del cuadrado es %d\n" , a);
}

p1-2.c

#include <stdio.h>

int main() {
    printf("Bienvenido a Trinidad & Tobago\n");
}

p1-3.c

#include <stdio.h>

int main() {
    printf("Where the is without fear\n");
    printf("And the head is held high\n");
}

p1-4.c

#include <stdio.h>

int main() {
    int a, b, sum;
    a = 14;
    b = 25;
    sum = a + b;
    printf("%d + %d = %d\n", a, b, sum);
}

p2-1.c

#include <stdio.h>
#include <string.h>


int copiar() {
    char name[50];
    strcpy(name, "Alicia en el pais de las maravillas");
    printf("Hola, %s\n", name);
}

int concatenar() {
    char name[35] = "Alicia";
    char last[23] = "pais de las maravillas";

    strcat(name, " en el ");
    strcat(name, last);

    printf("Hola, %s\n", name);
}

int main() {
    copiar();
    concatenar();
}