32 lines
527 B
C
32 lines
527 B
C
#include <ctype.h>
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int palindrome(const char *str, unsigned len) {
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const char *start = str;
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const char *end = str + len - 1;
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while(start < end) {
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if(!isalpha(*start)) {
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start += 1;
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} else if(!isalpha(*end)) {
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end -= 1;
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} else if(tolower(*start) == tolower(*end)) {
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start += 1;
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end -= 1;
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} else {
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return 0;
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}
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}
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return 1;
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}
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#include <string.h>
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int main(int argc, char **argv) {
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if(argc < 2) {
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return 2;
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}
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return !palindrome(argv[1], strlen(argv[1]));
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}
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