Submission #1069819

#	Time	Username	Problem	Language	Result	Execution time	Memory
1069819		LittleOrange	Bit Shift Registers (IOI21_registers)	C++17	71 / 100	2 ms	604 KiB

registers

#include "registers.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
const ll m = 100, b = 2000;

void construct_instructions(int s, int n, int k, int q) {
	auto get_num = [&](ll t, ll x, ll i){
		append_left(t,x,b-(i+1)*k);
		append_right(t,t,b-k);
		//append_print(t);
	};
	auto create_mask = [&](ll x, ll y){
		vector<bool> ret(b,0);
		ll c = b/(x+y);
		for(ll i = 0;i<b;i++){
			ret[i] = i%(x+y)<x;
		}
		return ret;
	};
	auto create_mask_d = [&](ll x, ll y,ll d){
		vector<bool> ret(b,0);
		ll c = b/(x+y);
		for(ll i = 0;i<b;i++){
			ret[i] = (i-d+x+y)%(x+y)<x;
		}
		return ret;
	};
	vector<bool> zero(b,0);
	vector<bool> one(b,0);
	one[0] = true;
	if (s==0){
		ll bn = 1<<(__lg(n-1)+1);
		if (n<bn){
			vector<bool> ad(b,0);
			for(ll i = n;i<bn;i++) for(ll j = 0;j<k;j++) ad[i*k+j] = 1;
			append_store(30,ad);
			append_or(0,0,30);
		}
		for(ll w = k;w<k*bn;w*=2){
			append_store(21,create_mask(w,w));
			append_store(22,create_mask(w*2-1,1));
			append_store(23,create_mask_d(w-1,w+1,1));
			append_right(2,0,w);
			append_and(2,21,2);
			append_and(1,0,21);
			if (w==1){
				append_and(0,1,2);
				continue;
			}
			append_not(3,2);
			append_and(3,3,22);
			append_add(5,1,3);
			append_right(6,5,w-1);
			append_and(6,6,23);
			append_right(7,6,1);
			append_or(6,7,6);
			append_not(7,6);
			append_and(2,2,7);
			append_and(1,1,6);
			append_or(0,1,2);
		}
	}else{
		auto create_maskk = [&](ll x, ll y,ll d, ll de){
			vector<bool> ret(b,0);
			ll c = b/(x+y);
			for(ll i = 0;i<k*n+k-de;i++){
				ret[i] = (i-d+x+y)%(x+y)<x;
			}
			return ret;
		};
		append_store(21,create_maskk(k,k,0,0));
		append_store(22,create_maskk(k*2-1,1,0,0));
		append_store(23,create_maskk(k-1,k+1,1,0));
		append_store(31,create_maskk(k,k,k,k));
		append_store(32,create_maskk(k*2-1,1,k,k));
		append_store(33,create_maskk(k-1,k+1,k+1,k));
		append_store(40,create_maskk(k,(n-2)*k,0,0));
		for(ll i = 0;i<n+10;i++){
			ll tp = (i&1)*10;
			append_right(2,0,k);
			append_and(2,21+tp,2);
			append_and(1,0,21+tp);
			append_not(3,2);
			append_and(3,3,22+tp);
			append_add(5,1,3);
			append_right(6,5,k-1);
			append_and(6,6,23+tp);
			append_right(7,6,1);
			append_or(6,7,6);
			append_not(7,6);
			append_and(8,2,7);
			append_and(9,1,6);
			append_or(10,8,9);
			append_and(8,2,6);
			append_and(9,1,7);
			append_or(11,8,9);
			append_left(11,11,k);
			if(tp){
				append_and(12,0,40);
				append_or(11,11,12);
			}
			append_or(0,10,11);
			//append_print(0);
		}
	}
}

Compilation message (stderr)

registers.cpp: In lambda function:
registers.cpp:15:6: warning: unused variable 'c' [-Wunused-variable]
   15 |   ll c = b/(x+y);
      |      ^
registers.cpp: In lambda function:
registers.cpp:23:6: warning: unused variable 'c' [-Wunused-variable]
   23 |   ll c = b/(x+y);
      |      ^
registers.cpp: In lambda function:
registers.cpp:66:7: warning: unused variable 'c' [-Wunused-variable]
   66 |    ll c = b/(x+y);
      |       ^
registers.cpp: In function 'void construct_instructions(int, int, int, int)':
registers.cpp:8:7: warning: variable 'get_num' set but not used [-Wunused-but-set-variable]
    8 |  auto get_num = [&](ll t, ll x, ll i){
      |       ^~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 25 / 25
• Subtask 5: 13 / 13
• Subtask 6: 0 / 29