Compilare: main.cpp: In function 'int main()': main.cpp:19:29: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=] fprintf(fout,"%d\n", s/2); ^ main.cpp:20:23: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=] fscanf(fin,"%d",&x); ^ main.cpp:10:10: warning: unused variable 'c' [-Wunused-variable] char c; ^ main.cpp:13:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld",&n); ^ main.cpp:15:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^ main.cpp:20:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x); ^ main.cpp:19:12: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d\n", s/2); ~~~~~~~^~~~~~~~~~~~~~~~~~