Submission #421585

#	Time	Username	Problem	Language	Result	Execution time	Memory
421585		Nicholas_Patrick	Sequence (BOI14_sequence)	C++17	Compilation error	0 ms	0 KiB

sequence

#pragma GCC optimize("O3")
#include <cstdio>
#include <queue>
#include <random>
using namespace std;

int singleLookup[1024];
int single(int mask){
	long long ret=0, mult=1;
	if(mask==1)
		return 10;
	for(int i=10; --i;){
		if(mask>>i&1){
			ret+=mult*i;
			mult*=10;
		}
	}
	if(mask&1){
		mult/=10;
		ret+=ret/mult*mult*9;
	}
	return ret;
}
long long solve(vector<int>& masks, int depth=0, bool positive=true, bool ninezero=false){
	if(depth>=15)
		return 1;
	if(masks.size()==0)
		return positive;
	if(masks.size()==1){
		int ret=singleLookup[masks[0]];
		return ret?ret:positive;
	}
	long long ret=102345678888889;
	for(int fu=0; fu<10-ninezero; fu++){
		vector<int> newMasks((masks.size()-1+fu)/10+1, 0);
		bool reduced=false;
		for(int i=0; i<10; i++){
			int u=fu+i;
			bool additional=u>=10;
			if(additional)
				u-=10;
			for(int j=0; j*10+i<masks.size(); j++){
				int x=masks[j*10+i]&~(1<<u);
				if(x!=masks[j*10+i] and i==0)
					reduced=true;
				newMasks[j+additional]|=x;
			}
		}
		while(not newMasks.empty() and newMasks.back()==0)
			newMasks.pop_back();
		ret=min(ret, solve(newMasks, depth+1, fu==0 and reduced, ninezero or fu==9 and newMasks.size()==2)*10+fu);
	}
	return ret?ret:positive;
}
int main()
	for(int i=0; i<1024; i++)
		singleLookup[i]=single(i);
	int k;
	scanf("%d", &k);
	vector<int> b(k);
	for(int& i : b)
		scanf("%d", &i), i=1<<i;
	printf("%lld\n", solve(b));
	// printf("%.3lf\n", (double)clock()/CLOCKS_PER_SEC);
}

Compilation message (stderr)

sequence.cpp: In function 'long long int solve(std::vector<int>&, int, bool, bool)':
sequence.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |    for(int j=0; j*10+i<masks.size(); j++){
      |                 ~~~~~~^~~~~~~~~~~~~
sequence.cpp:51:78: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   51 |   ret=min(ret, solve(newMasks, depth+1, fu==0 and reduced, ninezero or fu==9 and newMasks.size()==2)*10+fu);
      |                                                                        ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
sequence.cpp: At global scope:
sequence.cpp:56:2: error: expected initializer before 'for'
   56 |  for(int i=0; i<1024; i++)
      |  ^~~
sequence.cpp:56:15: error: 'i' does not name a type
   56 |  for(int i=0; i<1024; i++)
      |               ^
sequence.cpp:56:23: error: 'i' does not name a type
   56 |  for(int i=0; i<1024; i++)
      |                       ^
sequence.cpp:59:7: error: expected constructor, destructor, or type conversion before '(' token
   59 |  scanf("%d", &k);
      |       ^
sequence.cpp:61:2: error: expected unqualified-id before 'for'
   61 |  for(int& i : b)
      |  ^~~
sequence.cpp:63:8: error: expected constructor, destructor, or type conversion before '(' token
   63 |  printf("%lld\n", solve(b));
      |        ^
sequence.cpp:65:1: error: expected declaration before '}' token
   65 | }
      | ^