Submission #199004

#	Time	Username	Problem	Language	Result	Execution time	Memory
199004		kostia244	Unscrambling a Messy Bug (IOI16_messy)	C++17	Compilation error	0 ms	0 KiB

messy

#include <bits/stdc++.h>
#include "messy.h"

std::vector<int> restore_permutation(int n, int w, int r) {
    string t, s;
    for(int i = 0; i < n; i++) t += "0";
	for(int i = 0; i < n; i++) {
		t[i] = '1';
		add_element(t);
    }
    compile_set();
    std::vector<int> ans(n, -1);
    for(int i = 0; i < n; i++) {
		for(int j = 0; j < n; j++) {
			if(ans[j]!=-1) continue;
			s[j] = '1';
			if(check_element(s)) {
				ans[j] = i;
				break;
			}
			s[j] = '0';
		}
    }
    return ans;
}

Compilation message (stderr)

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:5:5: error: 'string' was not declared in this scope
     string t, s;
     ^~~~~~
messy.cpp:5:5: note: suggested alternatives:
In file included from /usr/include/c++/7/iosfwd:39:0,
                 from /usr/include/c++/7/ios:38,
                 from /usr/include/c++/7/istream:38,
                 from /usr/include/c++/7/sstream:38,
                 from /usr/include/c++/7/complex:45,
                 from /usr/include/c++/7/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
                 from messy.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'
messy.cpp:6:32: error: 't' was not declared in this scope
     for(int i = 0; i < n; i++) t += "0";
                                ^
messy.cpp:8:3: error: 't' was not declared in this scope
   t[i] = '1';
   ^
messy.cpp:16:4: error: 's' was not declared in this scope
    s[j] = '1';
    ^