Compilare: main.cpp: In function 'int main()': main.cpp:93:31: warning: unused variable 'mij' [-Wunused-variable] int n , t , i , lf , rg , mij, used , value , rest; ^~~ main.cpp:93:43: warning: unused variable 'value' [-Wunused-variable] int n , t , i , lf , rg , mij, used , value , rest; ^~~~~ main.cpp:93:51: warning: unused variable 'rest' [-Wunused-variable] int n , t , i , lf , rg , mij, used , value , rest; ^~~~ main.cpp:97:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&t); ^