Submission #587648

#	Time	Username	Problem	Language	Result	Execution time	Memory
587648		LastRonin	Flights (JOI22_flights)	C++17	Compilation error	0 ms	0 KiB

Ali

#include "Benjamin.h"
#include <string>
#include <vector>
#include <bits/stdc++.h>
#define ll long long
#define pb push_back

using namespace std;

namespace {
	int n, x, y;
}

std::string SendB(int N, int X, int Y) {
	x = X;
	y = Y;
	n = N;
	string a;
	for(int j = 0; j < 14; j++) {
		if((1<<j)&x)a += "1";
		else a += "0";
	}
	for(int j = 0; j < 6; j++)
		if((1<<j)&y) a += "1";		
		else a += "0";
	//if(a.size() == 20)exit(0);
	return a;
}

int Answer(std::string T) {
	int sub = ((1<<6) - 1)&y;
	int pos = 0;
	int answ = 0;			
	for(int j = 0; j < n; j++) {
//		if((j&sub) == sub) {
			if(j == y) {
				for(int i = pos; i < pos + 14; i++) {
					if(T.size() <= i)exit(0);
					answ += (T[i] == '1' ? 1 : 0) * (1<<(i - pos));
			   	}
				return answ;
			} else {
				pos += 14;
			}
//		}
	}
	return 0;
}

Benjamin

#include "Benjamin.h"
#include <string>
#include <vector>
#include <bits/stdc++.h>
#define ll long long
#define pb push_back

using namespace std;

namespace {
	int n, x, y;
}

std::string SendB(int N, int X, int Y) {
	x = X;
	y = Y;
	n = N;
	string a;
	for(int j = 0; j < 14; j++) {
		if((1<<j)&x)a += "1";
		else a += "0";
	}
	for(int j = 0; j < 6; j++)
		if((1<<j)&y) a += "1";		
		else a += "0";
	//if(a.size() == 20)exit(0);
	return a;
}

int Answer(std::string T) {
	int sub = ((1<<6) - 1)&y;
	int pos = 0;
	int answ = 0;			
	for(int j = 0; j < n; j++) {
//		if((j&sub) == sub) {
			if(j == y) {
				for(int i = pos; i < pos + 14; i++) {
					if(T[i] == '1')							
						answ += (1ll<<(i - pos));
			   	}
				return answ;
			} else {
				pos += 14;
			}
//		}
	}
	return 0;
}

Compilation message (stderr)

Ali.cpp: In function 'int Answer(std::string)':
Ali.cpp:38:18: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |      if(T.size() <= i)exit(0);
      |         ~~~~~~~~~^~~~
Ali.cpp:31:6: warning: unused variable 'sub' [-Wunused-variable]
   31 |  int sub = ((1<<6) - 1)&y;
      |      ^~~
grader_ali.cpp:10:8: warning: '{anonymous}::_randmem' defined but not used [-Wunused-variable]
   10 |   char _randmem[12379];
      |        ^~~~~~~~
/usr/bin/ld: /tmp/cclh8pXv.o: in function `main':
grader_ali.cpp:(.text.startup+0x3bb): undefined reference to `Init(int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: grader_ali.cpp:(.text.startup+0x569): undefined reference to `SendA(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
collect2: error: ld returned 1 exit status

Benjamin.cpp: In function 'int Answer(std::string)':
Benjamin.cpp:31:6: warning: unused variable 'sub' [-Wunused-variable]
   31 |  int sub = ((1<<6) - 1)&y;
      |      ^~~