제출 #781881

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
781881		rainboy	Mensza (COI22_mensza)	C++17	100 / 100	2194 ms	91284 KiB

Main

/* https://codeforces.com/blog/entry/103280#comment-917355 */
#include <stdio.h>

#define L	19

int main() {
	int q;

	scanf("%*d%d", &q);
	while (q--) {
		static char s[9];
		static int aa[L];
		int n, l, a, gt;

		scanf("%s", s);
		if (s[0] == 'a') {
			scanf("%d", &a);
			n = 0;
			for (l = 0; l < L; l++)
				if ((a & 1 << l) != 0)
					aa[n++] = a >> l + 1 | 1 << L - 1 - l;
			printf("%d", n);
			while (n--)
				printf(" %d", aa[n]);
			printf("\n");
		} else if (s[0] == 'b') {
			scanf("%d", &a);
			n = 0;
			for (l = 0; l < L; l++)
				if ((a & 1 << l) == 0)
					aa[n++] = a >> l + 1 | 1 << L - 1 - l;
			printf("%d", n);
			while (n--)
				printf(" %d", aa[n]);
			printf("\n");
		} else {
			scanf("%d", &n);
			gt = 0;
			while (n--) {
				scanf("%d", &a);
				if (a == 2)
					gt = 1;
			}
			printf(gt ? "A\n" : "B\n");
		}
	}
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:21:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |      aa[n++] = a >> l + 1 | 1 << L - 1 - l;
      |                     ~~^~~
Main.cpp:21:40: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   21 |      aa[n++] = a >> l + 1 | 1 << L - 1 - l;
      |                                        ^
Main.cpp:31:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   31 |      aa[n++] = a >> l + 1 | 1 << L - 1 - l;
      |                     ~~^~~
Main.cpp:31:40: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   31 |      aa[n++] = a >> l + 1 | 1 << L - 1 - l;
      |                                        ^
Main.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%*d%d", &q);
      |  ~~~~~^~~~~~~~~~~~~
Main.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |   scanf("%s", s);
      |   ~~~~~^~~~~~~~~
Main.cpp:17:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |    scanf("%d", &a);
      |    ~~~~~^~~~~~~~~~
Main.cpp:27:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |    scanf("%d", &a);
      |    ~~~~~^~~~~~~~~~
Main.cpp:37:9: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |    scanf("%d", &n);
      |    ~~~~~^~~~~~~~~~
Main.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   40 |     scanf("%d", &a);
      |     ~~~~~^~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 66 / 66