Submission #567771

#	Time	Username	Problem	Language	Result	Execution time	Memory
567771		jamezzz	Flights (JOI22_flights)	C++17	Compilation error	0 ms	0 KiB

Ali

#include "Ali.h"
#include <string>
#include <vector>
#include <bits/stdc++.h>
using namespace std;

namespace {

int nn;
int dist[10005];
vector<int> AL[10005];
void dfs(int u){
	for(int v:AL[u]){
		if(dist[v]!=-1)continue;
		dist[v]=dist[u]+1;
		dfs(v);
	}
}

}

void Init(int N, vector<int> U, vector<int> V){
	nn=N;
	for(int i=0;i<N;++i){
		AL[i].clear();
	}
	memset(dist,-1,sizeof dist);
	for(int i=0;i<N-1;++i){
		AL[U[i]].push_back(V[i]);
		AL[V[i]].push_back(U[i]);
	}
	for(int i=0;i<N;++i)SetID(i,i);
}

string SendA(string S){
	int X=0,Y=0;
	for(int i=0;i<14;++i){
		if(S[i]=='1')X+=(1<<i);
	}
	for(int i=0;i<6;++i){
		if(S[i+14]=='1')Y+=(1<<i);
	}
	dist[X]=0;dfs(X);
	
	string ret;
	for(int i=0;i<=nn/64;++i){
		int u=64*i+Y;
		for(int i=0;i<14;++i){
			if((dist[u]&(1<<i))!=0)ret+='1';
			else ret+='0';
		}
	}
	
	assert(strlen(ret)<=300000);
	
	return ret;
}

Benjamin

#include "Benjamin.h"
#include <string>
#include <vector>
#include <bits/stdc++.h>
using namespace std;

namespace {

int yy;

}

string SendB(int N, int X, int Y){
	yy=Y;
	string s;
	for(int i=0;i<14;++i){
		if((X&(1<<i))!=0)s+='1';
		else s+='0';
	}
	for(int i=0;i<6;++i){
		if((Y&(1<<i))!=0)s+='1';
		else s+='0';
	}
	return s;
}

int Answer(string T){
	yy/=64;
	int ans=0;
	for(int i=yy*14;i<(yy+1)*14;++i){
		if(T[i]=='1')ans+=(1<<i);
	}
	return ans;
}

Compilation message (stderr)

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from Ali.cpp:4:
Ali.cpp: In function 'std::string SendA(std::string)':
Ali.cpp:54:16: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   54 |  assert(strlen(ret)<=300000);
      |                ^~~
      |                |
      |                std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/10/cstring:42,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:48,
                 from Ali.cpp:4:
/usr/include/string.h:385:35: note:   initializing argument 1 of 'size_t strlen(const char*)'
  385 | extern size_t strlen (const char *__s)
      |                       ~~~~~~~~~~~~^~~
grader_ali.cpp:10:8: warning: '{anonymous}::_randmem' defined but not used [-Wunused-variable]
   10 |   char _randmem[12379];
      |        ^~~~~~~~