Compilare: main.cpp: In function 'int main()': main.cpp:18:14: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] x=x+(1<<n-i); ~^~ main.cpp:27:12: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] x=x<<32-n;x=x>>32-n; ~~^~ main.cpp:27:22: warning: suggest parentheses around '-' inside '>>' [-Wparentheses] x=x<<32-n;x=x>>32-n; ~~^~ main.cpp:14:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &n); ^