| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 597146 | JJAnawat | Aliens (IOI07_aliens) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
long long n,x0,y0;
bool query(long long qx,long long qy){
cout << "examine " << qx << " " << qy << "\n";
string s;
cin >> s;
return s=="true";
}
bool askx(long long x,long long y,long long pl){
if(x+pl>n||x+pl<=0)
return 0;
return query(x+pl,y);
}
bool asky(long long x,long long y,long long pl){
if(y+pl>n||y+pl<=0)
return 0;
return query(x,y+pl);
}
void sol(int sx,int sy){
cout << "solution " << sx << " " << sy << "\n";
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
long long lu,lr,ld,ll;
cin >> n >> x0 >> y0;
bool chk=1;
long long l=x0,r=x0;
//up
for(int i=0;i<=30;i++){
r=x0+(1<<i);
r=min(r,n);
chk=query(r,y0);
if(!chk||r==n)
break;
l=r;
}
if(r==n&&chk)
lu=n;
else{
while(l<r){
long long mid=r-((r-l)>>2);
chk=query(mid,y0);
if(chk)
l=mid;
else
r=mid-1;
}
lu=l;
}
//right
l=y0;
for(int i=0;i<=30;i++){
r=y0+(1<<i);
r=min(r,n);
chk=query(x0,r);
if(!chk||r==n)
break;
l=r;
}
if(r==n&&chk)
lr=n;
else{
while(l<r){
long long mid=r-((r-l)>>2);
chk=query(x0,mid);
if(chk)
l=mid;
else
r=mid-1;
}
lr=l;
}
//down
l=x0;
long long one=1;
for(int i=0;i<=30;i++){
r=x0-(1<<i);
r=max(r,one);
chk=query(r,y0);
if(!chk||r==1)
break;
l=r;
}
if(r==1&&chk)
ld=1;
else{
while(l>r){
long long mid=l+((r-l)>>2);
chk=query(mid,y0);
if(chk)
r=mid;
else
l=mid-1;
}
ld=l;
}
ll=lr-(lu-ld);
long long m=lu-ld+1;
long long mx=ld+m/2;
long long my=ll+m/2;
lu=ld=mx; ll=lr=my;
for(int i=2;i>=1;i--){
if(askx(mx,my,2*m*i)){
lu+=2*m*i;
break;
}
}
for(int i=2;i>=1;i--){
if(askx(mx,my,-2*m*i)){
ld-=2*m*i;
break;
}
}
for(int i=2;i>=1;i--){
if(asky(mx,my,2*m*i)){
lr+=2*m*i;
break;
}
}
ll=ll-(lr-ll);
cout << "solution " << (lu+ld)/2 << " " << (ll+lr)/2 << "\n";
}
Compilation message (stderr)
aliens.cpp:5:16: error: 'long long int y0' redeclared as different kind of entity
5 | long long n,x0,y0;
| ^~
In file included from /usr/include/features.h:461,
from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:518,
from /usr/include/c++/10/cassert:43,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
from aliens.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:220:1: note: previous declaration 'double y0(double)'
220 | __MATHCALL (y0,, (_Mdouble_));
| ^~~~~~~~~~
aliens.cpp: In function 'int main()':
aliens.cpp:35:20: error: no match for 'operator>>' (operand types are 'std::basic_istream<char>::__istream_type' {aka 'std::basic_istream<char>'} and 'double(double) noexcept')
35 | cin >> n >> x0 >> y0;
| ~~~~~~~~~~~~~~ ^~ ~~
| | |
| | double(double) noexcept
| std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
120 | operator>>(__istream_type& (*__pf)(__istream_type&))
| ^~~~~~~~
/usr/include/c++/10/istream:120:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]' (near match)
124 | operator>>(__ios_type& (*__pf)(__ios_type&))
| ^~~~~~~~
/usr/include/c++/10/istream:124:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'std::basic_istream<char>::__ios_type& (*)(std::basic_istream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'} [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:131:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
131 | operator>>(ios_base& (*__pf)(ios_base&))
| ^~~~~~~~
/usr/include/c++/10/istream:131:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'std::ios_base& (*)(std::ios_base&)' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:168:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
168 | operator>>(bool& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:168:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: warning: the address of 'double y0(double)' will never be NULL [-Waddress]
35 | cin >> n >> x0 >> y0;
| ^~
aliens.cpp:35:23: error: cannot bind non-const lvalue reference of type 'bool&' to an rvalue of type 'bool'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:172:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
172 | operator>>(short& __n);
| ^~~~~~~~
/usr/include/c++/10/istream:172:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'short int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(short int)y0' to 'short int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:175:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
175 | operator>>(unsigned short& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:175:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'short unsigned int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(short unsigned int)y0' to 'short unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:179:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
179 | operator>>(int& __n);
| ^~~~~~~~
/usr/include/c++/10/istream:179:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(int)y0' to 'int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:182:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
182 | operator>>(unsigned int& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:182:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'unsigned int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(unsigned int)y0' to 'unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:186:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
186 | operator>>(long& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:186:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'long int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(long int)y0' to 'long int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:190:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
190 | operator>>(unsigned long& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:190:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'long unsigned int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(long unsigned int)y0' to 'long unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:195:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
195 | operator>>(long long& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:195:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'long long int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(long long int)y0' to 'long long int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
199 | operator>>(unsigned long long& __n)
| ^~~~~~~~
/usr/include/c++/10/istream:199:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'long long unsigned int' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(long long unsigned int)y0' to 'long long unsigned int&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:235:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]' (near match)
235 | operator>>(void*& __p)
| ^~~~~~~~
/usr/include/c++/10/istream:235:7: note: conversion of argument 1 would be ill-formed:
aliens.cpp:35:23: error: invalid conversion from 'double (*)(double) noexcept' to 'void*' [-fpermissive]
35 | cin >> n >> x0 >> y0;
| ^~
| |
| double (*)(double) noexcept
aliens.cpp:35:23: error: cannot bind rvalue '(void*)y0' to 'void*&'
In file included from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from aliens.cpp:1:
/usr/include/c++/10/istream:214:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
214 | operator>>(float& __f)
| ^~~~~~~~
/usr/include/c++/10/istream:214:25: note: no known conversion for argument 1 from 'double(double) noexcept' to 'float&'
214 | operator>>(float& __f)
| ~~~~~~~^~~
/usr/include/c++/10/istream:218:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
218 | operator>>(double& __f)
| ^~~~~~~~
/usr/include/c++/10/istream:218:26: note: no known conversion for argument 1 from 'double(double) noexcept' to 'double&'
218 | operator>>(double& __f)
| ~~~~~~~~^~~
/usr/include/c++/10/istream:222:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>]'
222 | operator>>(long double& __f)
| ^~~~~~~~
/usr/include/c++/10/istream:222:31: note: no known conversion for argument 1 from 'double(double) noexcept' to 'long double&'
222 | operator>>(long double& __f)
| ~~~~~~~~~~~~~^~~
/usr/include/c++/10/istream:259:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]'
259 | operator>>(__streambuf_type* __sb);
| ^~~~~~~~
/usr/include/c++/10/istream:259:36: note: no known conversion for argument 1 from 'double(double) noexcept' to 'std::basic_istream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
259 | operator>>(__streambuf_type* __sb);
| ~~~~~~~~~~~~~~~~~~^~~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:45,
from aliens.cpp:1:
/usr/include/c++/10/cstddef:130:5: note: candidate: 'template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)'
130 | operator>>(byte __b, _IntegerType __shift) noexcept
| ^~~~~~~~
/usr/include/c++/10/cstddef:130:5: note: template argument deduction/substitution failed:
aliens.cpp:35:14: note: cannot convert '(& std::cin.std::basic_istream<char>::opera