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:3:102: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] int n,t,r;int main(){freopen("chiftea.in","r",stdin),freopen("chiftea.out","w",stdout),scanf("%d",&t);while(t--)scanf("%d",&n),r=sqrt(n),printf("%d\n",n==r*r?(4*r):n-r*r>r?(4*r+4):(4*r+2));} ^ main.cpp:3:102: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:3:102: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:3:189: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] int n,t,r;int main(){freopen("chiftea.in","r",stdin),freopen("chiftea.out","w",stdout),scanf("%d",&t);while(t--)scanf("%d",&n),r=sqrt(n),printf("%d\n",n==r*r?(4*r):n-r*r>r?(4*r+4):(4*r+2));} ^