Compilare: user.c:4:13: warning: conflicting types for built-in function ‘exp’ [enabled by default] inline void exp(long long s,int n) ^ user.c: In function ‘main’: user.c:26:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ user.c:32:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^