Compilare: main.cpp: In function 'int main()': main.cpp:19:47: warning: unused variable 'nrprod' [-Wunused-variable] long long min=90000000001,max=0,mij,st,dr,nrprod,rez,cate,rez1,p1,p2; ^~~~~~ main.cpp:20:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&cer,&n); ^ main.cpp:25:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&nr); ^ main.cpp:39:40: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld %lld",&p1,&p2); ^ main.cpp:43:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&nr); ^ main.cpp:129:16: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%lld",rez-rez1); ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:129:16: warning: 'rez1' may be used uninitialized in this function [-Wmaybe-uninitialized]