perm.cpp: In function 'int main()':
perm.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
27 | for(int i = 0 ; i < v.size() ; i++)
| ~~^~~~~~~~~~
perm.cpp:13:45: warning: unused variable 'b' [-Wunused-variable]
13 | cin >> n; long long akt = 200; bool b = 0;
| ^
perm.cpp:9:23: warning: unused variable 'm' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^
perm.cpp:9:27: warning: unused variable 'f' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^
perm.cpp:9:31: warning: unused variable 'xa' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^~
perm.cpp:9:35: warning: unused variable 'ya' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^~
perm.cpp:9:40: warning: unused variable 'xb' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^~
perm.cpp:9:45: warning: unused variable 'yb' [-Wunused-variable]
9 | long long t , n , m , f , xa, ya , xb , yb;
| ^~
/usr/bin/ld: /tmp/ccDHxb8u.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccDwLBpt.o:perm.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccDHxb8u.o: in function `main':
grader.cpp:(.text.startup+0x240): undefined reference to `construct_permutation(long long)'
collect2: error: ld returned 1 exit status