Submission #29880191

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Source Code Expand

#include<cstdio>
#include<cstring>
using ll = long long;
char s[111111];
inline char DFS(const char c, const ll a, const ll b)
{
	if (a == 0)
	{
		return c;
	}
	if (b > 1ll << (a - 1))
	{
		return DFS(c == 'A' ? 'C' : c == 'B' ? 'A' : 'B', a - 1, b - (1ll << (a - 1)));
	}
	return DFS(c == 'A' ? 'B' : c == 'B' ? 'C' : 'A', a - 1, b);
}
int main()
{
	int q;
	scanf("%s%d", s + 1, &q);
	const int n = strlen(s + 1);
	for (int i = 1; i <= q; ++i)
	{
		ll a, b;
		scanf("%lld%lld", &a, &b);
		if (a >= 62)
		{
			printf("%c", DFS((s[1] - 'A' + (a - 63)) % 3 + 'A', 63, b));
		}
		else
		{
			printf("%c", DFS(s[(b - 1) / (1ll << a) + 1], a, (b - 1) % (1ll << a) + 1));
		}
		puts("");
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:12: warning: unused variable ‘n’ [-Wunused-variable]
   21 |  const int n = strlen(s + 1);
      |            ^
./Main.cpp:20:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   20 |  scanf("%s%d", s + 1, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
./Main.cpp:25:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   25 |   scanf("%lld%lld", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~

Judge Result