PASS Week 10 Solutions

WARMUP SOLUTION

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

int main(){

    char str[20];

    printf("Enter in your first name: ");
    scanf("%s", str);
    printf("%s\n", str);

    return 0;
}










PROBLEM #1 SOLUTION

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

int main(){

    char fName[25];
    char lName[25];
    int age;

    printf("Enter in your first name, last name, and age: \n");
    scanf("%s %s %d", fName, lName, &age);
    printf("%s %s %d\n", fName, lName, age);

    return 0;
}












PROBLEM #2 SOLUTION

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

int main(){

    char ary1[40];
    char ary2[40];
    char ary3[40];
    char ary4[120];

    printf("Enter in your first name: ");
    fgets(ary1, 40, stdin);
    printf("Enter in your middle name: ");
    fgets(ary2, 40, stdin);
    printf("Enter in your last name: ");
    fgets(ary3, 40, stdin);

    strcpy(ary4, ary1);
    strcat(ary4, ary2);
    strcat(ary4, ary3);

    printf("%s%d\n", ary4, (int) strlen(ary4));

    return 0;
}









PROBLEM #3 SOLUTION

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

int main(){

    char ary[] = "Mary had a little lamb";

    for(int i = strlen(ary); i >= 0; i--){
        printf("%c", ary[i]);
    }

    return 0;
}












PROBLEM #4 SOLUTION

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

int main(){

    char ary[81];
    int size;

    printf("Enter in a sentence: ");
    fgets(ary, 80, stdin);
    ary[strcspn(ary, "\n")] = 0;
    size = sizeof(ary);

    for (int i = 0; i < size; i++){
        if (!isupper(ary[i])){
            ary[i] = toupper(ary[i]);
        }
    }

    printf("%s\n", ary);

    return 0;
}














PROBLEM #5 SOLUTION

#include <stdio.h>
#include <string.h>
int main(void) {
 char userInput[50]; // User numbers
 int i;
 int charCount;

 fgets(userInput, 50, stdin);

 charCount = 0;
 for (i = 0; i < strlen(userInput); ++i) {
 if ( (userInput[i] != ' ') && (userInput[i] != '.') && (userInput[i] != ',')
 && (userInput[i] != '!') && (userInput[i] != '\n')) {
 charCount = charCount + 1;
 }
 }
 printf("%d\n",charCount);

 return 0;
}