I'm learning C from K.N. King book and just arrive at a question to reverse the words in a sentence.

Here is the output:

Enter a sentence: you can cage a swallow can't you?

Reversal of sentence: you can't swallow a cage can you?

Though I've done this and it runs correctly but I want to make my code shorter. Here is my solution:

#include <stdio.h>

#define N 100

int main(void) {
  char ch[N], terminate;
  int i, j, k, len;
  printf("Enter a sentence: ");
  for(i = 0; i < N; i++) {
    ch[i] = getchar();
    if(ch[i] == '?' || ch[i] == '.' || ch[i] == '!' || ch[i] == '\n') {
      len = i;        //Determine the length of the string
      terminate = ch[i];
      break;
    }
  }
  int word_count = 0;
  for(j = len - 1; j >= 0; j--) {
    word_count++;
    if(ch[j] == ' ') {
      for(k = j+1; k < len; k++) {
        printf("%c", ch[k]);
      }
      printf("%c", ch[j]);  // print space character
      len = len - word_count;
      word_count = 0;
    }

  }

  for(i = 0; i < len; i++) {
    printf("%c", ch[i]);
    if(ch[i] == ' ') {
      break;
    }
  }
  printf("%c", terminate);

  return 0;
}

This can be done only with loops, arrays, getchar() and putchar() method using only <stdio.h> header and no extra header(restrict <string.h> header functions and methods). Also, not use any puts() and gets() functions.

  I guess this can be done only with two loops.

P.S. I am not asking any other solution, I just ask you that can I make my code shorter further.

I'm learning C from the K.N. King book and just arrived at a question to reverse the words in a sentence.

Here is the output:

Enter a sentence: you can cage a swallow can't you?

Reversal of sentence: you can't swallow a cage can you?

Though I've done this and it runs correctly, I want to make my code shorter. I'm not asking for any other solution.

#include <stdio.h>

#define N 100

int main(void) {
  char ch[N], terminate;
  int i, j, k, len;
  printf("Enter a sentence: ");
  for(i = 0; i < N; i++) {
    ch[i] = getchar();
    if(ch[i] == '?' || ch[i] == '.' || ch[i] == '!' || ch[i] == '\n') {
      len = i;        //Determine the length of the string
      terminate = ch[i];
      break;
    }
  }
  int word_count = 0;
  for(j = len - 1; j >= 0; j--) {
    word_count++;
    if(ch[j] == ' ') {
      for(k = j+1; k < len; k++) {
        printf("%c", ch[k]);
      }
      printf("%c", ch[j]);  // print space character
      len = len - word_count;
      word_count = 0;
    }

  }

  for(i = 0; i < len; i++) {
    printf("%c", ch[i]);
    if(ch[i] == ' ') {
      break;
    }
  }
  printf("%c", terminate);

  return 0;
}

This can be done only with loops, arrays, getchar() and putchar() methoda using only <stdio.h> header and no extra header  (restrict <string.h> header functions and methods). Also, no puts() and gets() functions. I guess this can be done only with two loops.

I'm learning C from K.N. King book and just arrive at a question to reverse the words in a sentence.

Here is the output:

Enter a sentence: you can cage a swallow can't you?

Reversal of sentence: you can't cage a swallow can you?

Though I've done this and it runs correctly but I want to make my code shorter. Here is my solution:

#include <stdio.h>

#define N 100

int main(void) {
  char ch[N], terminate;
  int i, j, k, len;
  printf("Enter a sentence: ");
  for(i = 0; i < N; i++) {
    ch[i] = getchar();
    if(ch[i] == '?' || ch[i] == '.' || ch[i] == '!' || ch[i] == '\n') {
      len = i;        //Determine the length of the string
      terminate = ch[i];
      break;
    }
  }
  int word_count = 0;
  for(j = len - 1; j >= 0; j--) {
    word_count++;
    if(ch[j] == ' ') {
      for(k = j+1; k < len; k++) {
        printf("%c", ch[k]);
      }
      printf("%c", ch[j]);  // print space character
      len = len - word_count;
      word_count = 0;
    }

  }

  for(i = 0; i < len; i++) {
    printf("%c", ch[i]);
    if(ch[i] == ' ') {
      break;
    }
  }
  printf("%c", terminate);

  return 0;
}

This can be done only with loops, arrays, getchar() and putchar() method using only <stdio.h> header and no extra header(restrict <string.h> header functions and methods). Also, not use any puts() and gets() functions.

I guess this can be done only with two loops.

P.S. I am not asking any other solution, I just ask you that can I make my code shorter further.

I'm learning C from K.N. King book and just arrive at a question to reverse the words in a sentence.

Here is the output:

Enter a sentence: you can cage a swallow can't you?

Reversal of sentence: you can't swallow a cage can you?

Though I've done this and it runs correctly but I want to make my code shorter. Here is my solution:

#include <stdio.h>

#define N 100

int main(void) {
  char ch[N], terminate;
  int i, j, k, len;
  printf("Enter a sentence: ");
  for(i = 0; i < N; i++) {
    ch[i] = getchar();
    if(ch[i] == '?' || ch[i] == '.' || ch[i] == '!' || ch[i] == '\n') {
      len = i;        //Determine the length of the string
      terminate = ch[i];
      break;
    }
  }
  int word_count = 0;
  for(j = len - 1; j >= 0; j--) {
    word_count++;
    if(ch[j] == ' ') {
      for(k = j+1; k < len; k++) {
        printf("%c", ch[k]);
      }
      printf("%c", ch[j]);  // print space character
      len = len - word_count;
      word_count = 0;
    }

  }

  for(i = 0; i < len; i++) {
    printf("%c", ch[i]);
    if(ch[i] == ' ') {
      break;
    }
  }
  printf("%c", terminate);

  return 0;
}

This can be done only with loops, arrays, getchar() and putchar() method using only <stdio.h> header and no extra header(restrict <string.h> header functions and methods). Also, not use any puts() and gets() functions.

I guess this can be done only with two loops.

P.S. I am not asking any other solution, I just ask you that can I make my code shorter further.