Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<stdio.h> ^~~~~~ main.cpp:2:2: warning: #import is a deprecated GCC extension [-Wdeprecated] #import<math.h> ^~~~~~ main.cpp: In function 'int main()': main.cpp:3:57: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] double x;int t;int main(){freopen("insula.in","r",stdin);freopen("insula.out","w",stdout);scanf("%d",&t);for(;t;--t){scanf("%lf",&x);printf("%0.3lf\n",floor((1/(sqrt(x*x+1)))*1000)/1000.0);}return 0;} ^ main.cpp:3:90: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] double x;int t;int main(){freopen("insula.in","r",stdin);freopen("insula.out","w",stdout);scanf("%d",&t);for(;t;--t){scanf("%lf",&x);printf("%0.3lf\n",floor((1/(sqrt(x*x+1)))*1000)/1000.0);}return 0;} ^ main.cpp:3:105: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] double x;int t;int main(){freopen("insula.in","r",stdin);freopen("insula.out","w",stdout);scanf("%d",&t);for(;t;--t){scanf("%lf",&x);printf("%0.3lf\n",floor((1/(sqrt(x*x+1)))*1000)/1000.0);}return 0;} ^ main.cpp:3:133: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] double x;int t;int main(){freopen("insula.in","r",stdin);freopen("insula.out","w",stdout);scanf("%d",&t);for(;t;--t){scanf("%lf",&x);printf("%0.3lf\n",floor((1/(sqrt(x*x+1)))*1000)/1000.0);}return 0;} ^