답안 #376917

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
376917 2021-03-12T07:07:40 Z fhvirus Minerals (JOI19_minerals) C++17
0 / 100
184 ms 141164 KB
#include "minerals.h"
 
// Knapsack DP is harder than FFT.
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii; typedef pair<ll,ll> pll;
#define ff first
#define ss second
#define pb emplace_back
#define FOR(i,n) for(int i = 0; i < (n); ++i)
#define FOO(i,a,b) for(int i = (a); i <= (b); ++i)
#define AI(x) begin(x),end(x)
template<class I> bool chmax(I &a, I b){ return a < b ? (a = b, true) : false;}
template<class I> bool chmin(I &a, I b){ return a > b ? (a = b, true) : false;}
#ifdef OWO
#define debug(args...) LKJ("[ " + string(#args) + " ]", args)
void LKJ(){ cerr<<endl;}
template<class I, class...T> void LKJ(I&&x, T&&...t){ cerr<<x<<", ", LKJ(t...);}
template<class I> void DE(I a, I b){ while(a < b) cerr<<*a<<" \n"[next(a) == b], ++a;}
#else
#define debug(...) 0
#define DE(...) 0
#endif
 
void solve(vector<int> &a, vector<int> &b, bool in){
	debug("solving:");
	DE(AI(a)); DE(AI(b));
	assert(a.size() == b.size());
 
	if(a.size() < 1 or b.size() < 1){
		return;
	}
	if(a.size() == 1 and b.size() == 1){
		Answer(a[0], b[0]);
		return;
	}
	vector<int> la, lb, ra, rb;
	int h = a.size() * 0.38;
	for(int i = 0; i < h; ++i) la.pb(a[i]);
	for(int i = h; i < a.size(); ++i) lb.pb(a[i]);
 
	int ls, cs;
	for(int i: la) cs = Query(i);
 
	for(int i: b){
		ls = cs;
		cs = Query(i);
		if(cs == ls ^ in) ra.pb(i);
		else rb.pb(i);
	}
 
	DE(AI(la)); DE(AI(lb));
	DE(AI(ra)); DE(AI(rb));
 
	solve(la, ra, !in);
	solve(lb, rb,  in);
}
 
void Solve(int N) {
	vector<int> hulan;
	for(int i = 1; i <= N * 2; ++i) hulan.pb(i);
	random_shuffle(AI(hulan));
	vector<vector<int>> as, bs;
	vector<int> a, b;
	int ls = 0, cs;
	for(int i: hulan){
		cs = Query(i);
		if(cs == ls) b.pb(i);
		else a.pb(i);

		if(a.size() == b.size()){
			as.pb(a);
			bs.pb(b);
			a.clear();
			b.clear();
		}

		ls = cs;
	}
 	for(int i = 0; i < as.size(); ++i)
 		solve(as[i], bs[i], true);
}

Compilation message

minerals.cpp: In function 'void solve(std::vector<int>&, std::vector<int>&, bool)':
minerals.cpp:22:20: warning: statement has no effect [-Wunused-value]
   22 | #define debug(...) 0
      |                    ^
minerals.cpp:27:2: note: in expansion of macro 'debug'
   27 |  debug("solving:");
      |  ^~~~~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:28:2: note: in expansion of macro 'DE'
   28 |  DE(AI(a)); DE(AI(b));
      |  ^~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:28:13: note: in expansion of macro 'DE'
   28 |  DE(AI(a)); DE(AI(b));
      |             ^~
minerals.cpp:41:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i = h; i < a.size(); ++i) lb.pb(a[i]);
      |                 ~~^~~~~~~~~~
minerals.cpp:49:9: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
   49 |   if(cs == ls ^ in) ra.pb(i);
      |      ~~~^~~~~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:53:2: note: in expansion of macro 'DE'
   53 |  DE(AI(la)); DE(AI(lb));
      |  ^~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:53:14: note: in expansion of macro 'DE'
   53 |  DE(AI(la)); DE(AI(lb));
      |              ^~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:54:2: note: in expansion of macro 'DE'
   54 |  DE(AI(ra)); DE(AI(rb));
      |  ^~
minerals.cpp:23:17: warning: statement has no effect [-Wunused-value]
   23 | #define DE(...) 0
      |                 ^
minerals.cpp:54:14: note: in expansion of macro 'DE'
   54 |  DE(AI(ra)); DE(AI(rb));
      |              ^~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:81:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |   for(int i = 0; i < as.size(); ++i)
      |                  ~~^~~~~~~~~~~
minerals.cpp: In function 'void solve(std::vector<int>&, std::vector<int>&, bool)':
minerals.cpp:49:9: warning: 'cs' may be used uninitialized in this function [-Wmaybe-uninitialized]
   49 |   if(cs == ls ^ in) ra.pb(i);
      |      ~~~^~~~~
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 177 ms 140652 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 184 ms 141164 KB Wrong Answer [2]
2 Halted 0 ms 0 KB -