Compilare: user.cpp: In function ‘void read_data()’: user.cpp:11:40: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] fscanf(fopen(IN, "r"), "%d %d", &N, &P); ^ user.cpp:11:40: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long long int*’ [-Wformat=] user.cpp: In function ‘int main()’: user.cpp:28:37: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf(fopen(OUT, "w"), "%ld\n", r); ^ user.cpp: In function ‘void read_data()’: user.cpp:11:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fopen(IN, "r"), "%d %d", &N, &P); ^