Compilare: user.cpp: In function ‘int main()’: user.cpp:39:35: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘unsigned char*’ [-Wformat=] fscanf(fin,"%d%d%lld",&n,&c,&l); ^ user.cpp:39:35: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘unsigned char*’ [-Wformat=] user.cpp:43:42: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘unsigned char*’ [-Wformat=] fscanf(fin,"%d%d",&arr[i],&bx); ^ user.cpp:38:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("shop.out","w",stdout); ^ user.cpp:39:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%lld",&n,&c,&l); ^ user.cpp:43:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&arr[i],&bx); ^