Initializacia

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Anton 2024-10-29 17:46:23 +01:00
parent e9423093a5
commit 138c5f4e91
2 changed files with 71 additions and 0 deletions

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a1/main Executable file

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#include <stdio.h> #include <stdio.h>
#include <string.h>
#define MAX_LEN 101
typedef struct {
char bracket;
int position;
} StackItem;
int is_opening(char ch) {
return ch == '(' || ch == '{' || ch == '[' || ch == '<';
}
int is_closing(char ch) {
return ch == ')' || ch == '}' || ch == ']' || ch == '>';
}
char matching_bracket(char ch) {
switch (ch) {
case ')': return '(';
case '}': return '{';
case ']': return '[';
case '>': return '<';
default: return 0;
}
}
void check_brackets(const char *line) {
StackItem stack[MAX_LEN];
int stack_top = -1;
printf("Read: %s\n", line);
for (int i = 0; line[i] != '\0'; i++) {
char ch = line[i];
if (is_opening(ch)) {
if (stack_top < MAX_LEN - 1) {
stack[++stack_top].bracket = ch;
stack[stack_top].position = i;
} else {
printf("Error: Stack overflow\n");
return;
}
} else if (is_closing(ch)) {
if (stack_top >= 0 && stack[stack_top].bracket == matching_bracket(ch)) {
stack_top--;
} else {
printf("Crossed bracket %c in %d, expected %c\n", ch, i,
stack_top >= 0 ? matching_bracket(stack[stack_top].bracket) : '#');
return;
}
}
}
if (stack_top >= 0) {
printf("Unmatched bracket %c in %d\n", stack[stack_top].bracket, stack[stack_top].position);
} else {
printf("All brackets OK\n");
}
}
int main() {
char line[MAX_LEN];
if (fgets(line, sizeof(line), stdin)) {
line[strcspn(line, "\n")] = '\0';
check_brackets(line);
}
return 0;
}