c语言编程----找出字符串中出现次数最多的字符

const char* ps = "hello world";

char c = '\0';
size_t counts[256] = { 0 };
for( const char* p=ps; *p; ++p )
{
++counts[*p];
if( counts[*p] > counts[c] )
c = *p;
}

printf( "Character=%c, count=%zu\n", c, counts[c] );