Eroare de compilare: user.cpp:9: error: expected initializer before ‘pair’ user.cpp: In function ‘int main()’: user.cpp:16: error: ‘coord’ was not declared in this scope user.cpp:17: error: ‘coord’ was not declared in this scope user.cpp:19: error: ‘sol’ was not declared in this scope user.cpp:20: error: ‘sol’ was not declared in this scope user.cpp:21: warning: use of ‘ll’ length modifier with ‘f’ type character user.cpp:14: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result