Submission #392522

#	Time	Username	Problem	Language	Result	Execution time	Memory
392522		nicolaalexandra	Highway design (CEOI12_highway)	C++14	80 / 100	1 ms	588 KiB

highway

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

int n,i;

/*int GetN(){
    int x;
    cin>>x;
    return x;
}

void Answer(int x, int y, int x2, int y2){
    cout<<x<<" "<<y<<"\n"<<x2<<" "<<y2;
}

int isOnLine (int x, int y, int z){
    int ans;
    cout<<"? "<<x<<" "<<y<<" "<<z<<"\n";
    cin>>ans;
    return ans;
}
*/
int main (){

    n = GetN();

    int ok = isOnLine(1,2,3);
    if (ok){

        /// trb sa gasesc doua puncte care nu sunt pe dreapta asta
        int sol = 0, sol2 = 0;
        for (i=4;i<n;i+=2){
            int ok2 = isOnLine(3,i,i+1);
            if (!ok2){
                if (!isOnLine(2,3,i)){
                    if (!sol)
                        sol = i;
                    else {
                        if (!sol2)
                            sol2 = i;
                    }}

                if (!isOnLine(2,3,i+1)){
                    if (!sol)
                        sol = i+1;
                    else {
                        if (!sol2)
                            sol2 = i+1;
                    }}}

            if (sol && sol2)
                break;
        }

        Answer(1,2,sol,sol2);

        return 0;
    }

    int ok2 = isOnLine(4,5,6);
    if (ok2){ /// e acelasi caz ca mai sus

        int sol = 0, sol2 = 0;

        for (i=1;i<n;i+=2){
            if (i == 3 || i == 4 || i == 5 || i == 6)
                continue;

            int ok3 = isOnLine(4,i,i+1);
            if (!ok3){
                if (!isOnLine(4,5,i)){
                    if (!sol)
                        sol = i;
                    else {
                        if (!sol2)
                            sol2 = i;
                    }
                }
                if (!isOnLine(4,5,i+1)){
                    if (!sol)
                        sol = i+1;
                    else {
                        if (!sol2)
                            sol2 = i+1;
                    }}}
            if (sol && sol2)
                break;
        }

        Answer(4,5,sol,sol2);
        return 0;
    }

    if (isOnLine(1,2,4)){

        if (isOnLine(1,2,5))
            Answer(1,2,3,6);
        else Answer(1,2,3,5);

        return 0;
    }

    if (isOnLine(1,2,5)){
        if (isOnLine(1,2,4))
            Answer(1,2,3,6);
        else Answer(1,2,3,4);
        return 0;
    }

    if (isOnLine(1,2,6)){
        if (isOnLine(1,2,4))
            Answer(1,2,3,5);
        else Answer(1,2,3,4);
        return 0;
    }

    if (isOnLine(1,3,4)){
        if (isOnLine(1,3,5))
            Answer(1,3,2,6);
        else Answer(1,3,2,5);
        return 0;
    }

    if (isOnLine(1,3,5)){
        if (isOnLine(1,3,4))
            Answer(1,3,2,6);
        else Answer(1,3,2,4);
        return 0;
    }

    if (isOnLine(1,3,6)){
        if (isOnLine(1,3,4))
            Answer(1,3,2,5);
        else Answer(1,3,2,4);
        return 0;
    }

    if (isOnLine(2,3,4)){
        if (isOnLine(2,3,5))
            Answer(2,3,1,6);
        else Answer(2,3,1,5);
        return 0;
    }

    if (isOnLine(2,3,5)){
        if (isOnLine(2,3,4))
            Answer(2,3,1,6);
        else Answer(2,3,1,4);
        return 0;
    }

    if (isOnLine(2,3,6)){
        if (isOnLine(2,3,4))
            Answer(2,3,1,5);
        else Answer(2,3,1,4);
    }

    return 0;
}

Compilation message (stderr)

office.c: In function 'int isOnLine(int, int, int)':
office.c:85:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   85 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:88:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   88 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:92:17: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
   92 |     _Fin(false, "Too many questions");
      |                 ^~~~~~~~~~~~~~~~~~~~
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
   83 |   int i;
      |       ^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  123 |     _Fin(0, "Protocol error");
      |             ^~~~~~~~~~~~~~~~
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  128 |       if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:130:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  130 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:132:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  132 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  134 |       if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
      |           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:136:21: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  136 |          _Fin(true, "Correct");
      |                     ^~~~~~~~~
office.c:138:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  138 |          _Fin(false, "Wrong answer");
      |                      ^~~~~~~~~~~~~~
office.c:140:19: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  140 |       _Fin(false, "Wrong answer");
      |                   ^~~~~~~~~~~~~~
office.c:142:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  142 |   _Fin(true, "Correct");
      |              ^~~~~~~~~
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
  120 |   int na1, nb1, na2, nb2, pont;
      |                           ^~~~
office.c: In function 'void _doInit()':
office.c:33:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   33 |     scanf("%d", &_N);
      |     ~~~~~^~~~~~~~~~~

• Subtask 1: 80 / 100