Compilare: main.cpp: In function 'int main()': main.cpp:108:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d %d" , &n , &k ); ^ main.cpp:113:48: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &v[ i ][ j ] ); ^ main.cpp:117:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &o ); ^