Submission #5646873

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Source Code Expand

#include <cstdlib>
#include <cstdio>
int n;
inline int query(int pos)
{
	printf("%d\n", pos % n);
	fflush(stdout);
	static char str[15];
	scanf("%s", str);
	if (str[0] == 'V')
		exit(0);
	return str[0] == 'M';
}
void solve(int l, int r, int x, int y)
{
	int m = l + r >> 1, res = query(m);
	if ((x == res) == (m - l & 1))
		solve(l, m, x, res);
	else
		solve(m, r, res, y);
}
int main()
{
	scanf("%d", &n);
	int x = query(0), y = query(n / 2);
	if ((x == y) == (n / 2 & 1))
		solve(0, n / 2, x, y);
	else
		solve(n / 2, n, y, x);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int query(int)’:
./Main.cpp:9:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", str);
                  ^
./Main.cpp: In function ‘int main()’:
./Main.cpp:24:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^

Judge Result