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#include <stdio.h>
#define NO_OF_CHARS 256
 
// C function to find the second most frequent character
// in a given string 'str'
char getSecondMostFreq(char *str)
{
// count number of occurrences of every character. 
int count[NO_OF_CHARS] = {0}, i;
for (i=0; str[i]; i++)
(count[str[i]])++;
for (i = 0; i < NO_OF_CHARS; i++)
printf("%d ",count[i]);
 
// Traverse through the count[] and find second highest element.
int first = 0, second = 0;
for (i = 0; i < NO_OF_CHARS; i++)
{
/* If current element is smaller than first then update both
first and second */
if (count[i] > count[first])
{
second = first;
first = i;
}
 
/* If count[i] is in between first and second then update second */
else if (count[i] > count[second] &&
count[i] != count[first])
second = i;
}
 
return second;
}
 
// Driver program to test above function
int main()
{
char str[] = "geeksforgeeks";
char res = getSecondMostFreq(str);
if (res != '\0')
printf("Second most frequent char is %c", res);
else
printf("No second most frequent character");
return 0;
}

Main.java:1: error: illegal character: '#'
#include <stdio.h>
^
Main.java:1: error: class, interface, or enum expected
#include <stdio.h>
         ^
Main.java:2: error: illegal character: '#'
#define NO_OF_CHARS 256
^
Main.java:10: error: class, interface, or enum expected
for (i=0; str[i]; i++)
^
Main.java:10: error: class, interface, or enum expected
for (i=0; str[i]; i++)
          ^
Main.java:10: error: class, interface, or enum expected
for (i=0; str[i]; i++)
                  ^
Main.java:12: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
^
Main.java:12: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
            ^
Main.java:12: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
                             ^
Main.java:16: error: class, interface, or enum expected
int first = 0, second = 0;
^
Main.java:17: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
^
Main.java:17: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
            ^
Main.java:17: error: class, interface, or enum expected
for (i = 0; i < NO_OF_CHARS; i++)
                             ^
Main.java:24: error: class, interface, or enum expected
first = i;
^
Main.java:25: error: class, interface, or enum expected
}
^
Main.java:31: error: class, interface, or enum expected
}
^
Main.java:34: error: class, interface, or enum expected
}
^
Main.java:40: error: class, interface, or enum expected
char res = getSecondMostFreq(str);
^
Main.java:41: error: class, interface, or enum expected
if (res != '\0')
^
Main.java:43: error: class, interface, or enum expected
else
^
Main.java:45: error: class, interface, or enum expected
return 0;
^
Main.java:46: error: class, interface, or enum expected
}
^
22 errors

Standard output is empty