Reading strings into 2 dimensional array in C - c

Question

I want to read a number of strings from a text file (standard input) to a 2 dimensional array using getchar(). please ignore the magic number in the code.
#include <stdio.h>
#include <stdlib.h>
int
main(int argc, char *argv[]) {
char string[100][20];
int c, j = 0, i = 0;
while ((c = getchar()) != EOF) {
while (c != '\n') {
string[j][i] = c;
i++;
}
string[j][i] = '\0';
j++;
}
printf('string is: %s', string);
return 0;
}

Answer 1

you need to use one more getchar() in inner while loop.
while (c != '\n') {
string[j][i] = c;
i++;
c = getchar(); /* this you need here to fetch char until \n encounters */
}
And need to make variable i again 0 once this string[j][i] = '\0'; is done.
Also this
printf('string is: %s', string);
is wrong. It should be
printf("string is: %s", string); /* use double quotation instead of single */
Sample code
int main(int argc, char *argv[]) {
char string[100][20];
int c, j = 0, i = 0;
while ((c = getchar()) != EOF) { /* this loop you need to terminate by pressing CTRL+D(in linux) & CTRL+Z(in windows) */
while (c != '\n') { /* this loop is for 1D array i.e storing char into each 1D array */
string[j][i] = c;
i++;
c = getchar(); /* add this, so that when you press ENTER, inner while loop fails */
}
string[j][i] = '\0';
j++;
i = 0;/* make it zero again, so that it put char into string[j][0] everytime once 1 line is completed */
}
for(int row = 0;row < j;row++) { /* rotate loop j times since string is
2D array */
printf("string is: %s", string[row]);
}
return 0;
}