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20250703 baekjoon

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songyc macbook 2025-07-03 20:22:14 +09:00
parent 484b367ec5
commit 32461d9284
1 changed files with 34 additions and 0 deletions
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34
code_study/Baekjoon/c/11723.c Normal file
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#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main() {
int set = 0;
int N;
scanf("%d",&N);
getchar();
while(N--) {
char str[20];
if (fgets(str, sizeof(str), stdin) == NULL) break;
if (str[0] == '\n') { N++; continue; }
str[strcspn(str, "\n")] = 0;
char *opcode = strtok(str, " ");
char *operend = strtok(NULL, " ");
if(!strcmp(opcode, "add")) {
set |= 1 << (atoi(operend)-1);
} else if(!strcmp(opcode, "remove")) {
set &= ~(1 << (atoi(operend)-1));
} else if(!strcmp(opcode, "check")) {
printf("%d\n",set & (1 << (atoi(operend)-1)) ? 1 : 0);
} else if(!strcmp(opcode, "toggle")) {
set ^= 1 << (atoi(operend)-1);
} else if(!strcmp(opcode, "all")) {
set = (1<<20) - 1;
} else if(!strcmp(opcode, "empty")) {
set = 0;
}
}
return 0;
}