Submission #200454

#	Time	Username	Problem	Language	Result	Execution time	Memory
200454		mohamedsobhi777	Martian DNA (IOI16_dna)	C++14	Compilation error	0 ms	0 KiB

dna

#include "dna.h"

#include <bits/stdc++.h>



std::string analyse(int n, int t) {
    string ret = "";
    for(int i = 0;i<(1<<n);i++)
    {
        string s;
        for(int j = 0;j<n;j++)
        {
            s+=char(  (i>>j) + '0');
        }
        if( make_test(s) ==n )
        {
            return s;
        }
    }
}

Compilation message (stderr)

dna.cpp: In function 'std::__cxx11::string analyse(int, int)':
dna.cpp:8:5: error: 'string' was not declared in this scope
     string ret = "";
     ^~~~~~
dna.cpp:8:5: note: suggested alternatives:
In file included from /usr/include/c++/7/string:39:0,
                 from dna.h:3,
                 from dna.cpp:1:
/usr/include/c++/7/bits/stringfwd.h:74:33: note:   'std::__cxx11::string'
   typedef basic_string<char>    string;
                                 ^~~~~~
/usr/include/c++/7/bits/stringfwd.h:74:33: note:   'std::__cxx11::string'
dna.cpp:11:16: error: expected ';' before 's'
         string s;
                ^
dna.cpp:14:13: error: 's' was not declared in this scope
             s+=char(  (i>>j) + '0');
             ^
dna.cpp:16:23: error: 's' was not declared in this scope
         if( make_test(s) ==n )
                       ^
grader.cpp: In function 'bool make_test(std::__cxx11::string)':
grader.cpp:14:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < p.size(); i++) {
                  ~~^~~~~~~~~~
grader.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 1; i <= ss.size(); i++) {
                  ~~^~~~~~~~~~~~
grader.cpp:28:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if (pr[i] == p.size()) {