Question

the program will ask the user to enter 5 strings then the program will determine how many A's are the collection of strings.

#include<stdio.h>

#include<string.h>

int main(void){

int i,j,count =0;

char words[5][30]

for(i=0;i<5;i++)

scanf("[1]", [2] );

for(i=0;i<5;i++)

for(j=0;j< [3]; j++)

if( [4] =='A')

count ++;

printf("there are %dA's.,count);

return 0

}

which expressions should replace [1]? %s,%c,%d,%f

which expressions should replace [2]?

words[i],&words[i],words[i][0],&words[i][0]

which expressions should replace [3]?

strlen(words[i]),words[i],words[i][j],length.words[i]

which expressions should replace [4]

words[i][j],words[j][i],words[i],words[i][0]

Answer 1

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

int main(void){
int i,j,count =0;
char words[5][30];
for(i=0;i<5;i++)
scanf("%s", words[i]); // [1] => %s because 's' represent string pointer, [2] => words[i] because it represent 5 str.
for(i=0;i<5;i++)
for(j=0;j< strlen(words[i]); j++) //[3] => strlen(words[i]), it will tell the length of the string.
if( words[i][j] =='A') // [4] => words[i][j] , i => used to identify the 5 string, and j => used for tracing of each character of //string
count ++;
printf("there are %dA's.",count);
return 0;
}

Output:

SAURAV GAURAV LAMAN PAWAN BHARTI there are 9A's.