Compilare: user.cpp: In function ‘void precompute()’: user.cpp:73:50: warning: too many arguments for format [-Wformat-extra-args] fscanf(f, "%d%d%d%d%d", &a, &b, &c, &d, &e, &ff); ^ user.cpp:73:51: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d%d%d", &a, &b, &c, &d, &e, &ff); ^ user.cpp:76:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d%d%d", &x, &y, &z); ^ user.cpp: In function ‘int main()’: user.cpp:107:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d", &N, &M, &A, &B, &C); ^ user.cpp:111:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &a, &b, &c); ^