47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
#include <stdio.h>
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#include <string.h>
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#define LINESIZE 100
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int main() {
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char vstup[LINESIZE];
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char *brackets = "{[(<";
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char *brackets1 = "}])>";
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char stack[LINESIZE];
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int position[LINESIZE];
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int x = 0;
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fgets(vstup, LINESIZE, stdin);
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printf("Read: %s", vstup);
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for (int j = 0; j < strlen(vstup); j++) {
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for (int i = 0; i < 4; i++) {
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if (vstup[j] == brackets[i]) {
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stack[x] = brackets[i];
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position[x] = j;
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x++;
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break;
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} else if (vstup[j] == brackets1[i]) {
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char expected = '\0';
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if (stack[x-1] == '{') expected = '}';
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else if (stack[x-1] == '[') expected = ']';
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else if (stack[x-1] == '(') expected = ')';
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else if (stack[x-1] == '<') expected = '>';
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if (vstup[j] != expected) {
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if(expected != '\0'){
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printf("Crossed bracket %c in %d, expected %c\n", vstup[j], j, expected);
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return 0;
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}
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else{
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printf("Unexpected closing bracket %c in %d\n", vstup[j], position[x-1]);
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return 0;
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}
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}
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x--;
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expected = '\0';
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break;
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}
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}
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}
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printf("All brackets OK\n");
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return 0;
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} |