Borderou de evaluare (job #256158)

Eroare de compilare: user.cpp:6:1: error: expected ‘]’ before ‘ifstream’ user.cpp: In function ‘int main()’: user.cpp:13:5: error: ‘f’ was not declared in this scope user.cpp:19:13: error: expected ‘;’ before ‘v’ user.cpp:21:30: error: ‘s’ was not declared in this scope user.cpp:23:22: error: ‘s’ was not declared in this scope user.cpp:24:19: error: ‘s’ was not declared in this scope user.cpp:30:5: error: expected ‘;’ before ‘for’ user.cpp:30:17: warning: statement has no effect [-Wunused-value] user.cpp:30:21: error: expected ‘;’ before ‘)’ token user.cpp:46:38: error: ‘s’ was not declared in this scope user.cpp:48:40: error: ‘s’ was not declared in this scope user.cpp:49:37: error: ‘s’ was not declared in this scope user.cpp:11:17: warning: unused variable ‘x1’ [-Wunused-variable] user.cpp:11:20: warning: unused variable ‘x2’ [-Wunused-variable] user.cpp:11:25: warning: unused variable ‘y1’ [-Wunused-variable] user.cpp:11:28: warning: unused variable ‘y2’ [-Wunused-variable] user.cpp:11:33: warning: unused variable ‘a’ [-Wunused-variable]