Submission #439439

#	Time	Username	Problem	Language	Result	Execution time	Memory
439439		haojiandan	Bit Shift Registers (IOI21_registers)	C++17	58 / 100	1 ms	204 KiB

registers

#include "registers.h"
#include <bits/stdc++.h>
using namespace std;

void construct_instructions(int s, int n, int k, int q) {
	int m=100,b=2000;
	vector<bool> A(b,0);
	for (int i=n*k;i<b;i++) A[i]=1; append_store(99,A); append_or(0,0,99);
	int r1=98,r2=97,A0=96,A1=95;
	for (int i=0;i<b;i++) if ((i/k)%2==0) A[i]=1; else A[i]=0;
	append_store(r1,A);
	for (int i=0;i<b;i++) if (i%(k*2)==0) A[i]=1; else A[i]=0;
	append_store(r2,A);
	int a=1;
	while (a<n) {
		append_right(1,0,a*k);
		a*=2;
		append_not(2,1);
		append_and(2,2,r1);
		append_and(0,0,r1);
		append_add(3,0,2);
		append_right(3,3,k);
		append_and(3,3,r2);
		append_add(3,3,r1);
		
		append_and(A0,3,0);
		append_not(3,3);
		append_and(A1,3,1);
		append_or(0,A0,A1);
	}
}

Compilation message (stderr)

registers.cpp: In function 'void construct_instructions(int, int, int, int)':
registers.cpp:8:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    8 |  for (int i=n*k;i<b;i++) A[i]=1; append_store(99,A); append_or(0,0,99);
      |  ^~~
registers.cpp:8:34: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    8 |  for (int i=n*k;i<b;i++) A[i]=1; append_store(99,A); append_or(0,0,99);
      |                                  ^~~~~~~~~~~~
registers.cpp:6:6: warning: unused variable 'm' [-Wunused-variable]
    6 |  int m=100,b=2000;
      |      ^

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