Compilare: user.cpp: In function ‘void umplere()’: user.cpp:33:9: warning: unused variable ‘st’ [-Wunused-variable] int st, dr; ^ user.cpp:33:13: warning: unused variable ‘dr’ [-Wunused-variable] int st, dr; ^ user.cpp: In function ‘void citire()’: user.cpp:14:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d\n", &n, &m, &k); ^ user.cpp:16:30: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(x + 1, 2016, stdin); ^ user.cpp:17:30: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(y + 1, 2016, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:82:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("edist.in", "r", stdin); ^ user.cpp:83:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("edist.out", "w", stdout); ^