Submission #171049

#	Time	Username	Problem	Language	Result	Execution time	Memory
171049		dndhk	Worm Worries (BOI18_worm)	C++14	10 / 100	3 ms	376 KiB

worm

#include <bits/stdc++.h>

#define all(v) (v).begin(), (v).end()
#define sortv(v) sort(all(v))
#define uniqv(v) (v).erase(unique(all(v)), (v).end())
#define pb push_back
#define FI first
#define SE second
#define lb lower_bound
#define ub upper_bound
#define test 1
#define TEST if(test)

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;

const int MOD = 1000000007; // 998244353
const int INF = 2e9;
const ll INFLL = 1e18;
const int MAX_N = 1;

int N, M, K, Q;
map<ll, int> mp;

int ask(int x, int y, int z){
	if(x<1 || x>N || y<1 || y>M || z<1 || z>K)	return 0;
	ll t = (ll)x*(ll)(M+1)*(ll)(K+1)+(ll)y*(ll)(K+1)+(ll)z;
	if(mp[t]!=0){
		return mp[t];
	}
	printf("? %d %d %d\n", x, y, z);
	int ret;
	fflush(stdout);
	scanf("%d", &ret);
	mp[t] = ret;
	return ret;
}

void ans(int x, int y, int z){
	printf("! %d %d %d\n", x, y, z);
	fflush(stdout);
}

void pro1(){
	int s = 0, e = N+1, m;
	int mx = 0;
	while(s<e){
		if(s==e-1){
			int t1 = ask(s, 1, 1), t2 = ask(e, 1, 1);
			if(t1>t2){
				ans(s, 1, 1);
			}else{
				ans(e, 1, 1);
			}
			return;
		}
		m = (s+e)/2;
		int h = ask(m, 1, 1);
		if(h>mx){
			int h2 = ask(m+1, 1, 1);
			if(h>h2){
				e = m;
				mx = h;
			}else{
				s = m+1;
				mx = h2;
			}
		}else{
			if(ask(s, 1, 1)<ask(e, 1, 1)){
				s = m;
			}else{
				e = m;
			}
		}
	}
	ans(s, 1, 1);
}

int main(){
	scanf("%d%d%d%d", &N, &M, &K, &Q);
	if(M==1 && K==1 && N==1000000){
		pro1();
	}else if(K==1){

	}else{

	}
	return 0;
}

Compilation message (stderr)

worm.cpp: In function 'int ask(int, int, int)':
worm.cpp:38:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &ret);
  ~~~~~^~~~~~~~~~~~
worm.cpp: In function 'int main()':
worm.cpp:84:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d", &N, &M, &K, &Q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 22
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 14
• Subtask 6: 0 / 23