Compilare: main.cpp: In function 'int main()': main.cpp:10:13: warning: unused variable 'j' [-Wunused-variable] int n,i,j,ap=0,max1,x,k=0; ^ main.cpp:10:20: warning: unused variable 'max1' [-Wunused-variable] int n,i,j,ap=0,max1,x,k=0; ^~~~ main.cpp:11:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ main.cpp:13:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^