Compilare: user.cpp: In function ‘int main()’: user.cpp:99:31: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘ll* {aka long long int*}’ [-Wformat=] fscanf(in, "%I64d", &x); ^ user.cpp:120:43: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘ll {aka long long int}’ [-Wformat=] fprintf(out, "%I64d", sumNew - sumInit); ^ user.cpp:97:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:99:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%I64d", &x); ^