Compilare: user.cpp: In function ‘int main()’: user.cpp:75:23: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fin, "%ld", &N); ^ user.cpp:78:42: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fin, "%ld %ld", &P[i].x, &P[i].y); ^ user.cpp:78:42: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 4 has type ‘int*’ [-Wformat=] user.cpp:85:23: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fin, "%ld", &M); ^ user.cpp:87:52: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fin, "%ld %ld %ld %ld", &x1, &y1, &x2, &y2); ^ user.cpp:87:52: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 4 has type ‘int*’ [-Wformat=] user.cpp:87:52: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 5 has type ‘int*’ [-Wformat=] user.cpp:87:52: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 6 has type ‘int*’ [-Wformat=] user.cpp:101:29: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(fout, "%ld\n", sol); ^ user.cpp:75:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%ld", &N); ^ user.cpp:78:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%ld %ld", &P[i].x, &P[i].y); ^ user.cpp:85:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%ld", &M); ^ user.cpp:87:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%ld %ld %ld %ld", &x1, &y1, &x2, &y2); ^