Compilare: main.cpp: In function 'int main()': main.cpp:46:13: warning: unused variable 'x' [-Wunused-variable] int n, i, x, poz, size, caut ; ^ main.cpp:47:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%d", &n ) ; ^