Submission #1302896

#	Time	Username	Problem	Language	Result	Execution time	Memory
1302896		Mamikonm1	Unscrambling a Messy Bug (IOI16_messy)	C++20	Compilation error	0 ms	0 KiB

messy

#include <vector>
#include <cstdio>
#include <string>
#include <set>
#include <cstdlib>
#include <iostream>

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;
}

#include <bits//stdc++.h>
using namespace std;

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;
}
mt19937 rg(time(nullptr));
std::vector<int> restore_permutation(int n, int w, int r) {
    string a=string(n,'0'),cur=a;
    vector<int>ind(n),ans(n);
    for(int i=0;i<n;++i){
        a[i]='1';
        ind[i]=i;
        add_element(a);
    }
    int id,it,cnt=0;
    compile_set();
    vector<bool>vis(n);
    for(int i=0;i<n;++i){
        for(int j=0;j<n;++j)vis[j]=0;
        for(;;){
            id=rg()%ind.size();
            if(vis[it=ind[id]])continue;
            vis[it]=1;
            cur[it]='1';
            cnt++;
            assert(cnt<=r);
            if(check_element(cur)){
                ans[i]=it;
                ind.erase(begin(ind)+id);
                break;
            }
            cur[it]='0';
        }
    }
    return ans;
}


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 != p) {
        printf("WA\n");
    }


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

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

Compilation message (stderr)

messy.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
messy_c.h:1:9: warning: #pragma once in main file
    1 | #pragma once
      |         ^~~~
/usr/bin/ld: /tmp/ccy32zDp.o: in function `helper::read_int()':
grader.cpp:(.text+0x560): multiple definition of `helper::read_int()'; /tmp/cciA9my7.o:messy.cpp:(.text+0x60): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `get_p(int)':
grader.cpp:(.text+0x5b0): multiple definition of `get_p(int)'; /tmp/cciA9my7.o:messy.cpp:(.text+0xb0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x10): multiple definition of `helper::p'; /tmp/cciA9my7.o:(.bss+0x1390): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `wa()':
grader.cpp:(.text+0x5d0): multiple definition of `wa()'; /tmp/cciA9my7.o:messy.cpp:(.text+0xd0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cciA9my7.o:messy.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x28): multiple definition of `helper::n'; /tmp/cciA9my7.o:(.bss+0x13a8): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x4): multiple definition of `helper::w'; /tmp/cciA9my7.o:(.bss+0x138c): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x0): multiple definition of `helper::r'; /tmp/cciA9my7.o:(.bss+0x1388): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x2c): multiple definition of `helper::compiled'; /tmp/cciA9my7.o:(.bss+0x13ac): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `check(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
grader.cpp:(.text+0x600): multiple definition of `check(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'; /tmp/cciA9my7.o:messy.cpp:(.text+0xf0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `check_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x650): multiple definition of `check_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/cciA9my7.o:messy.cpp:(.text+0x140): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o:(.bss+0x40): multiple definition of `helper::set_[abi:cxx11]'; /tmp/cciA9my7.o:(.bss+0x13c0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `add_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
grader.cpp:(.text+0x7d0): multiple definition of `add_element(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)'; /tmp/cciA9my7.o:messy.cpp:(.text+0x2c0): first defined here
/usr/bin/ld: /tmp/ccy32zDp.o: in function `compile_set()':
grader.cpp:(.text+0x830): multiple definition of `compile_set()'; /tmp/cciA9my7.o:messy.cpp:(.text+0x630): first defined here
collect2: error: ld returned 1 exit status