Compilare: main.cpp: In function 'int main()': main.cpp:10:40: warning: unused variable 'g' [-Wunused-variable] FILE *f = fopen("deque.in", "r"), *g = fopen("deque.out", "w"); ^ main.cpp:14:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%i %i", &n, &k); ^ main.cpp:16:31: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%i", &v[i]); ^