Compilare: user.cpp: In function ‘bool matches()’: user.cpp:56:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos != strlen(y)) ^ user.cpp:21:9: warning: unused variable ‘ll’ [-Wunused-variable] int ll = strlen(y); ^ user.cpp: In function ‘bool matchesEliminatX(int)’: user.cpp:108:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pos != strlen(y)) ^ user.cpp:67:9: warning: unused variable ‘ll’ [-Wunused-variable] int ll = strlen(y); ^ user.cpp: In function ‘bool matchesEliminat()’: user.cpp:120:9: warning: unused variable ‘pos’ [-Wunused-variable] int pos = 0; ^ user.cpp: In function ‘void citire()’: user.cpp:12:26: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(x, 1500, stdin); ^ user.cpp:15:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n", &n); ^ user.cpp: In function ‘int main()’: user.cpp:194:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sablon.in", "r", stdin); ^ user.cpp:195:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sablon.out", "w", stdout); ^ user.cpp:201:30: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(y, 1500, stdin); ^