aliens.cpp:3:10: error: 'int y0' redeclared as different kind of symbol
int n,x0,y0;
^~
In file included from /usr/include/features.h:367:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/os_defines.h:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:533,
from /usr/include/c++/7/cassert:43,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:33,
from aliens.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:250:1: note: previous declaration 'double y0(double)'
__MATHCALL (y0,, (_Mdouble_));
^
aliens.cpp: In function 'int main()':
aliens.cpp:21:29: warning: format '%i' expects argument of type 'int*', but argument 4 has type 'double (*)(double) throw ()' [-Wformat=]
scanf("%i %i %i",&n,&x0,&y0);
~~~^
aliens.cpp:24:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:24:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:26:18: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
if(Ask(x0+mi,y0)) lo=mi;
^
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:30:5: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
hi=y0,lo=0;
^~
aliens.cpp:31:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:31:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:33:15: warning: pointer to a function used in arithmetic [-Wpointer-arith]
if(Ask(x0,y0-mi)) lo=mi;
~~^~~
aliens.cpp:33:15: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:36:4: warning: pointer to a function used in arithmetic [-Wpointer-arith]
y0-=lo;
~~^~~~
aliens.cpp:36:6: error: assignment of read-only location 'y0'
y0-=lo;
^~
aliens.cpp:36:6: error: cannot convert 'double (*)(double) throw ()' to 'double(double) throw ()' in assignment
aliens.cpp:37:16: error: no matching function for call to 'min(int, double (&)(double) throw ())'
hi=min(n-x0,y0),lo=0;
^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from aliens.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:195:5: note: candidate: template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)
min(const _Tp& __a, const _Tp& __b)
^~~
/usr/include/c++/7/bits/stl_algobase.h:195:5: note: template argument deduction/substitution failed:
aliens.cpp:37:16: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) throw ()')
hi=min(n-x0,y0),lo=0;
^
In file included from /usr/include/c++/7/bits/char_traits.h:39:0,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/istream:38,
from /usr/include/c++/7/sstream:38,
from /usr/include/c++/7/complex:45,
from /usr/include/c++/7/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:52,
from aliens.cpp:1:
/usr/include/c++/7/bits/stl_algobase.h:243:5: note: candidate: template<class _Tp, class _Compare> const _Tp& std::min(const _Tp&, const _Tp&, _Compare)
min(const _Tp& __a, const _Tp& __b, _Compare __comp)
^~~
/usr/include/c++/7/bits/stl_algobase.h:243:5: note: template argument deduction/substitution failed:
aliens.cpp:37:16: note: deduced conflicting types for parameter 'const _Tp' ('int' and 'double(double) throw ()')
hi=min(n-x0,y0),lo=0;
^
In file included from /usr/include/c++/7/algorithm:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
from aliens.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3450:5: note: candidate: template<class _Tp> _Tp std::min(std::initializer_list<_Tp>)
min(initializer_list<_Tp> __l)
^~~
/usr/include/c++/7/bits/stl_algo.h:3450:5: note: template argument deduction/substitution failed:
aliens.cpp:37:16: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
hi=min(n-x0,y0),lo=0;
^
In file included from /usr/include/c++/7/algorithm:62:0,
from /usr/include/x86_64-linux-gnu/c++/7/bits/stdc++.h:65,
from aliens.cpp:1:
/usr/include/c++/7/bits/stl_algo.h:3456:5: note: candidate: template<class _Tp, class _Compare> _Tp std::min(std::initializer_list<_Tp>, _Compare)
min(initializer_list<_Tp> __l, _Compare __comp)
^~~
/usr/include/c++/7/bits/stl_algo.h:3456:5: note: template argument deduction/substitution failed:
aliens.cpp:37:16: note: mismatched types 'std::initializer_list<_Tp>' and 'int'
hi=min(n-x0,y0),lo=0;
^
aliens.cpp:38:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:38:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:40:18: warning: pointer to a function used in arithmetic [-Wpointer-arith]
if(Ask(x0+mi,y0-mi)) lo=mi;
~~^~~
aliens.cpp:40:18: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:43:11: warning: pointer to a function used in arithmetic [-Wpointer-arith]
x0+=lo;y0-=lo;
~~^~~~
aliens.cpp:43:13: error: assignment of read-only location 'y0'
x0+=lo;y0-=lo;
^~
aliens.cpp:43:13: error: cannot convert 'double (*)(double) throw ()' to 'double(double) throw ()' in assignment
aliens.cpp:44:13: error: invalid operands of types 'int' and 'double(double) throw ()' to binary 'operator-'
hi=min(x0,n-y0),lo=0;
~^~~
aliens.cpp:45:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:45:34: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
for(mi=lo+hi+1>>1;lo<hi;mi=lo+hi+1>>1)
~~~~~^~
aliens.cpp:47:18: warning: pointer to a function used in arithmetic [-Wpointer-arith]
if(Ask(x0-mi,y0+mi)) lo=mi;
~~^~~
aliens.cpp:47:18: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:50:20: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x1=x0-lo,y1=y0+lo;
~~^~~
aliens.cpp:50:20: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:52:27: warning: pointer to a function used in arithmetic [-Wpointer-arith]
if(len%5==0 && !Ask(x0,y0-len/5))
~~^~~~~~
aliens.cpp:52:27: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:54:28: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(len-1)/2,y2=y0+(len-1)/2;
~~^~~~~~~~~~
aliens.cpp:54:28: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:57:32: warning: pointer to a function used in arithmetic [-Wpointer-arith]
else if(len%3==0 && !Ask(x0,y0-len/3))
~~^~~~~~
aliens.cpp:57:32: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:61:19: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
if(Ask(x0+2*m,y0))
^
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:63:27: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(m-1)/2,y2=y0+(len-1)/2;
~~^~~~~~~~~~
aliens.cpp:63:27: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:68:29: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(len-1)/2,y2=y0+(m-1)/2;
~~^~~~~~~~
aliens.cpp:68:29: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:76:19: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
if(Ask(x0+2*m,y0))
^
aliens.cpp:4:5: note: initializing argument 2 of 'int Ask(int, int)'
int Ask(int x, int y)
^~~
aliens.cpp:78:33: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-m+1+(len-1)/2,y2=y0+(len-1)/2;
~~^~~~~~~~~~
aliens.cpp:78:33: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:83:29: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(len-1)/2,y2=y0+m-1-(len-1)/2;
~~^~
aliens.cpp:83:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(len-1)/2,y2=y0+m-1-(len-1)/2;
~~~~^~
aliens.cpp:83:33: warning: pointer to a function used in arithmetic [-Wpointer-arith]
int x2=x0-(len-1)/2,y2=y0+m-1-(len-1)/2;
~~~~~~^~~~~~~~~~
aliens.cpp:83:33: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive]
aliens.cpp:50:6: warning: unused variable 'x1' [-Wunused-variable]
int x1=x0-lo,y1=y0+lo;
^~
aliens.cpp:50:15: warning: unused variable 'y1' [-Wunused-variable]
int x1=x0-lo,y1=y0+lo;
^~
aliens.cpp: In function 'int Ask(int, int)':
aliens.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%s",o);
~~~~~^~~~~~~~
aliens.cpp: In function 'int main()':
aliens.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%i %i %i",&n,&x0,&y0);
~~~~~^~~~~~~~~~~~~~~~~~~~~~~