Compilare: main.cpp: In function 'int main()': main.cpp:7:15: warning: unused variable 'j' [-Wunused-variable] int n,l,i,j,x,max=0; ^ main.cpp:9:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&l,&n); ^ main.cpp:11:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%c%c",&x,&ch,&ch); ^ main.cpp:16:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%c",&ch); ^