#include <bits/stdc++.h>
#include "office.h"
using namespace std;
typedef long long int ll;
typedef pair<int,int> ii;
const int N = 1e5 + 5;
int n;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
n = GetN();
if (isOnLine(1,2,3)) {
int a = 1,b = 2,x,y;
vector <int> v;
for (int i = 4 ; i <= n ; i += 2)
if (!isOnLine(a,i,i + 1)) v.push_back(i);
if (isOnLine(a,b,v.back())) {
x = v.back() + 1;
v.pop_back();
if (isOnLine(a,b,v.back())) y = v.back() + 1;
else y = v.back();
Answer(a,b,x,y);
}
else
Answer(a,b,v.back(),v.back() + 1);
}
else if (isOnLine(4,5,6)) {
int a = 4,b = 5,x,y;
vector <int> v;
for (int i = 7 ; i <= n ; i += 2)
if (!isOnLine(a,i,i + 1)) v.push_back(i);
if (isOnLine(a,b,v.back())) {
x = v.back() + 1;
v.pop_back();
if (isOnLine(a,b,v.back())) y = v.back() + 1;
else y = v.back();
Answer(a,b,x,y);
}
else
Answer(a,b,v.back(),v.back() + 1);
}
else {
int a = -1, b = -1,x,y;
for (int i = 4 ; i <= 6 ; i++)
if (isOnLine(1,2,i))
a = 1 , b = 2,x = 3;
if (a == -1) {
for (int i = 4 ; i <= 6 ; i++)
if (isOnLine(1,3,i))
a = 1, b = 3,x = 2;
}
if (a == -1)
a = 2,b = 3, x = 1;
for (int i = 4 ; i <= 6 ; i++)
if (!isOnLine(a,b,i))
y = i;
Answer(a,b,x,y);
}
}
Compilation message
highway.cpp: In function 'int main()':
highway.cpp:62:11: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
Answer(a,b,x,y);
~~~~~~^~~~~~~~~
office.c: In function 'int isOnLine(int, int, int)':
office.c:85:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:88:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:92:37: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Too many questions");
^
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
int i;
^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:130:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:132:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
office.c:136:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:138:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:140:33: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:142:23: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
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]
scanf("%d", &_N);
~~~~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct - Protocol error |
| 2 |
Incorrect |
3 ms |
512 KB |
Output isn't correct - Protocol error |
| 3 |
Incorrect |
2 ms |
552 KB |
Output isn't correct - Protocol error |
| 4 |
Correct |
2 ms |
552 KB |
Output is correct - 202 queries, 4 points |
| 5 |
Incorrect |
2 ms |
668 KB |
Output isn't correct - Protocol error |
| 6 |
Correct |
2 ms |
668 KB |
Output is correct - 303 queries, 4 points |
| 7 |
Incorrect |
2 ms |
668 KB |
Output isn't correct - Protocol error |
| 8 |
Incorrect |
3 ms |
736 KB |
Output isn't correct - Protocol error |
| 9 |
Incorrect |
2 ms |
744 KB |
Output isn't correct - Protocol error |
| 10 |
Correct |
2 ms |
744 KB |
Output is correct - 502 queries, 4 points |
| 11 |
Incorrect |
2 ms |
744 KB |
Output isn't correct - Protocol error |
| 12 |
Correct |
2 ms |
744 KB |
Output is correct - 1003 queries, 4 points |
| 13 |
Incorrect |
3 ms |
744 KB |
Output isn't correct - Protocol error |
| 14 |
Correct |
2 ms |
744 KB |
Output is correct - 2004 queries, 4 points |
| 15 |
Incorrect |
2 ms |
744 KB |
Output isn't correct - Protocol error |
| 16 |
Correct |
2 ms |
744 KB |
Output is correct - 805 queries, 4 points |
| 17 |
Incorrect |
2 ms |
744 KB |
Output isn't correct - Protocol error |
| 18 |
Incorrect |
3 ms |
744 KB |
Output isn't correct - Protocol error |
| 19 |
Correct |
2 ms |
744 KB |
Output is correct - 12707 queries, 4 points |
| 20 |
Incorrect |
2 ms |
844 KB |
Output isn't correct - Protocol error |
| 21 |
Correct |
2 ms |
844 KB |
Output is correct - 20062 queries, 4 points |
| 22 |
Correct |
3 ms |
848 KB |
Output is correct - 28063 queries, 4 points |
| 23 |
Correct |
3 ms |
980 KB |
Output is correct - 33890 queries, 4 points |
| 24 |
Incorrect |
3 ms |
984 KB |
Output isn't correct - Protocol error |
| 25 |
Incorrect |
4 ms |
1116 KB |
Output isn't correct - Protocol error |
