Submission #713071

#	Time	Username	Problem	Language	Result	Execution time	Memory
713071		lam	Unscrambling a Messy Bug (IOI16_messy)	C++14	Compilation error	0 ms	0 KiB

messy

#include <vector>
#include <cstdio>
#include <string>
#include <set>
#include <cstdlib>
#include <iostream>
#include "messy.h"

using namespace std;

namespace helper {

    set<string> set_;
    bool compiled = false;
    int n;
    vector<int> p;
    int w;
    int r;

    int read_int() {
        int x;
        cin >> x;
        return x;
    }

}

using namespace helper;


// A convenience function.
int get_p(int i) {
    int ret = p[i];
    return ret;
}

int main() {
    n = read_int();
    w = read_int();
    r = read_int();
    p = vector<int>(n);
    for (int i = 0; i < n; i++) {
        p[i] = read_int();
    }
    vector<int> answer = restore_permutation(n, w, r);

    if (answer.size() != n) {
        printf("WA\n");
        return 0;
    }


    printf("%d", answer[0]);

    for (int i = 1; i < n; i++) {
        printf(" %d", answer[i]);
    }
    printf("\n");
    return 0;
}

void wa() {
    printf("WA\n");
    exit(0);
}

bool check(const string& x) {
    if ((int)x.length() != n) {
        return false;
    }
    for (int i = 0; i < n; i++) {
        if (x[i] != '0' && x[i] != '1') {
            return false;
        }
    }
    return true;
}

void add_element(string x) {
    if (--w < 0 || compiled || !check(x)) {
        wa();
    }
    set_.insert(x);
}

bool check_element(string x) {
    if (--r < 0 || !compiled || !check(x)) {
        wa();
    }
    return set_.count(x);
}

void compile_set() {
    if (compiled) {
        wa();
    }
    compiled = true;
    set<string> compiledSet;
    string compiledElement = string(n, ' ');
    for (set<string>::iterator it = set_.begin(); it != set_.end(); it++) {
        string s = *it;
        for (int i = 0; i < n; i++) {
            compiledElement[i] = s[get_p(i)];
        }
        compiledSet.insert(compiledElement);
    }
    set_ = compiledSet;
}
using namespace std;
inline bool checkbit(int i, int j)
{
    return i>>j&1;
}
inline string tostring(int x, int n)
{
    string s="";
    for (int i=0; i<n; i++)
    {
        if (x%2==0) s+='0';
        else s+='1';
        x/=2;
    }
    return s;
}
vector<int> restore_permutation(int n, int w, int r) {
    string s="";
    for (int i=0; i<n; i++) s+='0';
    for (int i=n-1; i>=1; i--)
    {
        s[i] = '1';
        add_element(s);
    }
    compile_set();
    vector <int> res(n);
    int mask = 0;
    for (int it=0; it<n; it++)
    {
        for (int j=0; j<n; j++)
        {
            if (checkbit(mask,j)) continue;
            mask^=(1<<j);
            bool check = check_element(tostring(mask,n));
            if (!check)
            {
                mask^=(1<<j);
                continue;
            }
            for (int j=0; j<n; j++)
                if (checkbit(mask,j)) res[j]++;
            break;
        }
    }
    return res;
}

Compilation message (stderr)

messy.cpp: In function 'int main()':
messy.cpp:47:23: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     if (answer.size() != n) {
      |         ~~~~~~~~~~~~~~^~~~
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `helper::read_int()':
grader.cpp:(.text+0x860): multiple definition of `helper::read_int()'; /tmp/ccefOPuK.o:messy.cpp:(.text+0x9e0): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `get_p(int)':
grader.cpp:(.text+0x8b0): multiple definition of `get_p(int)'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xa30): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x10): multiple definition of `helper::p'; /tmp/ccefOPuK.o:(.bss+0x10): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `wa()':
grader.cpp:(.text+0x8d0): multiple definition of `wa()'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xa50): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `check(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
grader.cpp:(.text+0x900): multiple definition of `check(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xa80): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x28): multiple definition of `helper::n'; /tmp/ccefOPuK.o:(.bss+0x28): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `check_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x950): multiple definition of `check_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xad0): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x0): multiple definition of `helper::r'; /tmp/ccefOPuK.o:(.bss+0x0): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x2c): multiple definition of `helper::compiled'; /tmp/ccefOPuK.o:(.bss+0x2c): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x40): multiple definition of `helper::set_[abi:cxx11]'; /tmp/ccefOPuK.o:(.bss+0x40): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccefOPuK.o:messy.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o:(.bss+0x4): multiple definition of `helper::w'; /tmp/ccefOPuK.o:(.bss+0x4): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `add_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0xad0): multiple definition of `add_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xc50): first defined here
/usr/bin/ld: /tmp/ccEFX5eL.o: in function `compile_set()':
grader.cpp:(.text+0xb30): multiple definition of `compile_set()'; /tmp/ccefOPuK.o:messy.cpp:(.text+0xcb0): first defined here
collect2: error: ld returned 1 exit status