Here's what I've came up with:
Code:
#include <stdio.h>#include <stdlib.h>
#include <string.h>
#include <ctype.h>
void count1 (char* str)// count numbers of vowels for each word
{
for (int i = 0;;)
for (int v = 0, w = i;;)
{
int len;
char c = str[i++];
switch (c)
{
case 'A':
case 'E':
case 'I':
case 'O':
case 'U':
case 'a':
case 'e':
case 'i':
case 'o':
case 'u':
v++;
default:
continue;
case ' ':
case '\t':
case '\n':
case '\0':
len = i - 1 - w;
printf("'%.*s': %d characters, %d vowels\n", len, str+w, len, v );
if (c)
break;
else
return;
}
break;
}
}
void print_x(char* str, int n)
{
char* tmp;
unsigned int cnt = 0, stat = 0;
const char aeiou[] = "AEIOUaeiou";
while(*str)
{
switch(stat)
{
case 0:// the word did not start
if (!isalpha(*str))
{
putchar(*str);
break;
}
stat = 1;
tmp = str;
cnt = 0;
case 1:// the word did start
if (strchr(aeiou, *str))
{
cnt++;
break;
}
if (! isalpha(*str))
{
if (cnt != n)
while(tmp <= str) putchar(*(tmp++));
else putchar(*str);
stat = 0;
}
} // end switch
++str;
}
if (stat)
{
--str;
if (cnt != n) while(tmp <= str) putchar(*(tmp++));
}
}
int main()
{
FILE *fp;
char line[128], line2[128];
int c=0, count[26]= {0}, x;
int n,a;
int i,j;
fp = fopen("test.txt", "r");
fscanf(fp, "%[^\n]", line);
fclose(fp);
printf("%s\n\n", line);
while (line[c] != '\0')
{
if (line[c] >= 'a' && line[c] <= 'z')
{
x = line[c] - 'a';
count[x]++;
}
c++;
}
for (c = 0; c < 26; c++)
{
printf("%c occurs %d times.\n", c + 'a', count[c]);
}
for (i = 0; i < 26; ++i)
{
for (j = i + 1; j < 26; ++j)
{
if (count[i] < count[j])
{
a = count[i];
count[i] = count[j];
count[j] = a;
}
}
}
printf("\n\n");
for (c = 0; c < 26; c++)
{
printf("%c occurs %d times.\n", c + 'a', count[c]);
}
printf("\n");
count1(line);
printf("\nInsert n: ");
scanf("%d", &n);
if (!(fp = fopen("./test.txt", "r")))
{
printf("unable open file\n");
return 1;
}
while (fgets(line, 128, fp))
print_x(line, n);
fclose(fp);
return 0;
}