Строка

#include <stdio.h>
#include <string.h>
 
#define N 1024
 
int main(void)
{
    char str[N];
    unsigned plus_count = 0, multi_count = 0;
    unsigned len;
    unsigned i;
 
    printf("Enter string: ");
    fgets(str, N, stdin);
 
    len = strlen(str);
 
    for (i = 0; i < len; ++i)
    {
        switch (str[i])
        {
        case '+':
            ++plus_count;
            break;
        case '*':
            ++multi_count;
            break;
        }
    }
 
    if (plus_count == multi_count)
    {
        printf("Number of \"+\" equals number of \"*\"\n");
    }
    else
    {
        if (plus_count < multi_count)
            printf("Number of \"+\" less number of \"*\"\n");
        else
            printf("Number of \"+\" large number of \"*\"\n");
    }
 
    return 0;
}

#include <stdio.h>
 
int main(int argc, char *argv[]) {
  const size_t buffer_size = 2048;
  char buffer[buffer_size];
  fgets(buffer, buffer_size, stdin);
 
  size_t number_of_plus = 0;
  size_t number_of_star = 0;
 
  char *symbol = buffer;
  while (*symbol != '\0') {
    if (*symbol == '+')
      ++number_of_plus;
    else
    if (*symbol == '*')
      ++number_of_star;
    ++symbol;
  }
 
  printf("Number of '+': %d\nNumber of '*': %d\n",
         number_of_plus, number_of_star);
 
  printf("Number of '+' is %s number of '*'.\n",
         (number_of_plus > number_of_star) ? "more than" :
         (number_of_plus < number_of_star) ? "less than" :
         "equal to");
 
  return 0;
}