Compilare: user.cpp: In function ‘int main()’: user.cpp:31:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(out, "%d", rez); ^ user.cpp:8:19: warning: unused variable ‘a’ [-Wunused-variable] int n, i, j, k, a, b, x; ^ user.cpp:8:22: warning: unused variable ‘b’ [-Wunused-variable] int n, i, j, k, a, b, x; ^ user.cpp:9:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &n); ^ user.cpp:11:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^