Compilare: user.cpp: In function ‘void Sterge()’: user.cpp:109:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j; ^ user.cpp:109:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void Read()’: user.cpp:40:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%d%d%d\n", &N, &M, &Q ); ^ user.cpp:45:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%d", &a[i][j] ); ^ user.cpp:49:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "\n" ); ^ user.cpp: In function ‘void Solve()’: user.cpp:76:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%c", &t ); ^ user.cpp:80:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%d\n", &L ); ^ user.cpp:91:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%d\n", &C ); ^ user.cpp:102:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "\n" ); ^