Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:54:2: error: ‘FILE’ was not declared in this scope FILE *fin = fopen("zoo.in", "r"); ^~~~ user.cpp:54:8: error: ‘fin’ was not declared in this scope FILE *fin = fopen("zoo.in", "r"); ^~~ user.cpp:54:33: error: ‘fopen’ was not declared in this scope FILE *fin = fopen("zoo.in", "r"); ^ user.cpp:55:8: error: ‘fout’ was not declared in this scope FILE *fout = fopen("zoo.out", "w"); ^~~~ user.cpp:56:22: error: ‘fscanf’ was not declared in this scope fscanf(fin, "%d", &n); ^ user.cpp:73:28: error: ‘fprintf’ was not declared in this scope fprintf(fout, "%d\n", ans); ^ user.cpp:75:12: error: ‘fclose’ was not declared in this scope fclose(fin); ^