Compilare: user.cpp: In function ‘int main()’: user.cpp:64:6: warning: unused variable ‘a’ [-Wunused-variable] char a[100],lit; ^ user.cpp:65:5: warning: unused variable ‘prod’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:65:10: warning: unused variable ‘duplic’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:65:23: warning: unused variable ‘nr’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:65:26: warning: unused variable ‘j’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:65:28: warning: unused variable ‘p’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:65:30: warning: unused variable ‘result’ [-Wunused-variable] int prod,duplic[1001],nr,j,p,result,letters,teste,index_teste; ^ user.cpp:69:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d",&teste); ^ user.cpp:73:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%c",&lit); ^ user.cpp:74:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%c",&lit); ^ user.cpp:78:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%c",&lit); ^ user.cpp:82:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (f,"%d",&max_lit); ^