problema interativo
#include <cstdio>
#include <cstring>
using namespace std;
int main() {
int l = 1, r = 1000000;
while (l != r) {
int mid = (l + r + 1) / 2;
printf("%d\n", mid);
fflush(stdout);
char response[3];
scanf("%s", response);
if (strcmp(response, "<") == 0)
r = mid - 1;
else
l = mid;
}
printf("! %d\n", l);
fflush(stdout);
}
Tame Tapir