Submission #737249

#	Time	Username	Problem	Language	Result	Execution time	Memory
737249		bobthebuilder	Vision Program (IOI19_vision)	C++17	100 / 100	15 ms	2152 KiB

vision

#include "vision.h"
#include<bits/stdc++.h>
using namespace std;
#define sz(x) (int)x.size()
#define REP(i,n) for(int i=0;i<n;i++)
#define REP1(i,n) for(int i=1;i<=n;i++)
#define pb push_back
#define lowb(x) (x&(-x))
#define ALL(_x) _x.begin(),_x.end()
#define pii pair<int,int>
#define f first
#define s second
#define SORT_UNIQUE(x) sort(ALL(x)),x.erase(unique(ALL(x)),x.end())
const int maxn=1e3+5;
#define ll long long
vector<int> a[maxn],b[maxn];
int n,m;
int aa[maxn],bb[maxn];
int pa[maxn],pb[maxn];
int xa,xb;
int leq(int x){
	vector<int> az,bz;
	REP(i,n+m-1){
		if(i>=x+1) az.pb(add_and({aa[i],add_not(pa[i-x-1]),pa[i-1]})),bz.pb(add_and({bb[i],add_not(pb[i-x-1]),pb[i-1]}));
		else if(i) az.pb(add_and({aa[i],pa[i-1]})),bz.pb(add_and({bb[i],pb[i-1]}));
		az.pb(add_and({xa,aa[i]})),bz.pb(add_and({xb,bb[i]}));
	}
	return add_and({add_or(az),add_or(bz)});
}	
void construct_network(int H, int W, int K) {
	n=H,m=W;
	REP(i,n){
		REP(j,m){
			a[i+j].pb(i*m+j);
			b[i-j+m-1].pb(i*m+j);
		}
	}
	REP(i,n+m-1){
		aa[i]=add_or(a[i]);
		bb[i]=add_or(b[i]);
	}
	xa=aa[0],xb=bb[0];
	pa[0]=aa[0],pb[0]=bb[0];
	REP1(i,n+m-2){
		pa[i]=add_or({pa[i-1],aa[i]});
		pb[i]=add_or({pb[i-1],bb[i]});
		xa=add_xor({xa,aa[i]}),xb=add_xor({xb,bb[i]});
	}
	if(K==1){
		leq(K);
		return;
	}
	int a=leq(K),b=leq(K-1);
	add_and({a,add_not(b)});
}

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 15 / 15
• Subtask 5: 12 / 12
• Subtask 6: 8 / 8
• Subtask 7: 14 / 14
• Subtask 8: 19 / 19