Eroare de compilare: user.cpp: In function ‘int main(int, char**)’: user.cpp:10:2: error: ‘FILE’ was not declared in this scope FILE* f= fopen("adunare.in", "r+"); ^ user.cpp:10:8: error: ‘f’ was not declared in this scope FILE* f= fopen("adunare.in", "r+"); ^ user.cpp:10:35: error: ‘fopen’ was not declared in this scope FILE* f= fopen("adunare.in", "r+"); ^ user.cpp:11:8: error: ‘g’ was not declared in this scope FILE* g = fopen("adunare.out", "w+"); ^ user.cpp:12:20: error: ‘fscanf’ was not declared in this scope fscanf(f, "%d", &a); ^ user.cpp:14:26: error: ‘fprintf’ was not declared in this scope fprintf(g, "%d\n", a + b); ^ user.cpp:15:10: error: ‘fclose’ was not declared in this scope fclose(f); ^