Submission #1678184
Source Code Expand
#include "iostream" #include <string> using namespace std; int main() { double a[6] ; double ans=0; a[2] -= a[0]; a[3] -= a[1]; a[4] -= a[0]; a[5] -= a[1]; ans = abs(a[2] * a[5] - a[3] * a[4]) / 2; cout << ans<<endl; return(0); }
Submission Info
Submission Time | |
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Task | C - 直訴 |
User | nos_KMC |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 253 Byte |
Status | CE |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:12:37: error: call of overloaded ‘abs(double)’ is ambiguous ans = abs(a[2] * a[5] - a[3] * a[4]) / 2; ^ In file included from /usr/include/c++/5/cstdlib:72:0, from /usr/include/c++/5/ext/string_conversions.h:41, from /usr/include/c++/5/bits/basic_string.h:5334, from /usr/include/c++/5/string:52, from /usr/include/c++/5/bits/locale_classes.h:40, from /usr/include/c++/5/bits/ios_base.h:41, from /usr/include/c++/5/ios:42, from /usr/include/c++/5/ostream:38, from /usr/include/c++/5/iostream:39, from ./Main.cpp:2: /usr/include/stdlib.h:775:12: note: candidate: int abs(int) extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur; ^ In file included from /usr/include/c++/5/ext/string_conversions.h:41:0, from /usr/include/c++/5/bits/basic_...