Can I get assistance in code added to this program that will print the total number of letters in the user entered string? Thanks

#include #include

//Function that displays string backward void backWard(char str[], int len) { int j;

//Iterating in backward direction for(j=len-1; j>=0; j--) { printf("%c", str[j]); } }

//Function that displays string vertical void vertical(char str[], int len) { int j;

//Iterating in vertical direction for(j=0; j

//Function that displays string triangle void triangle(char str[], int len) { int i, j, k=0;

for(i=1; str[k]!='\0'; i++) { //Iterating row wise for(j=1; j<=i&&str[k]!='\0'; j++) { printf("%c", str[k]); k++; }

printf(" "); } }

//Main function int main() { char str[100], ch; int len;

//Iterate till user want to quit do { //Reading string from user printf(" Enter a string: "); gets(str);

//Finding length len = strlen(str);

//Display forward printf(" Displaying string in forward: "); puts(str);

//Display backward printf(" Displaying string in backward: "); backWard(str, len);

//Display vertical printf(" Displaying string in vertical: "); vertical(str, len);

//Display triangle printf(" Displaying string in Triangle: "); triangle(str, len);

//Prompting user for quit or re-run printf(" Do you want to quit? (y/n)"); scanf("%c", &ch);

gets(str);

}while(ch=='n'||ch=='N');

printf(" "); return 0; }