Compilare: user.cpp: In function ‘int main()’: user.cpp:16:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u", &N ); ^ user.cpp:20:124: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u%u%u%u%u%u", v + i, v + i + 1, v + i + 2, v + i + 3, v + i + 4, v + i + 5, v + i + 6, v + i + 7 ); ^ user.cpp:23:111: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u%u%u%u%u", v + i, v + i + 1, v + i + 2, v + i + 3, v + i + 4, v + i + 5, v + i + 6 ); ^ user.cpp:26:98: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u%u%u%u", v + i, v + i + 1, v + i + 2, v + i + 3, v + i + 4, v + i + 5 ); ^ user.cpp:29:85: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u%u%u", v + i, v + i + 1, v + i + 2, v + i + 3, v + i + 4 ); ^ user.cpp:32:72: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u%u", v + i, v + i + 1, v + i + 2, v + i + 3 ); ^ user.cpp:35:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u%u", v + i, v + i + 1, v + i + 2 ); ^ user.cpp:38:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u%u", v + i, v + i + 1 ); ^ user.cpp:41:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( f, "%u", v + i ); ^