Compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<fstream> | ^~~~~~ main.cpp:2:153: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 2 | std::ifstream f("scmax.in");std::ofstream g("scmax.out");int n,r,i,x,v[1<<17],k[1<<17],a[1<<17];void p(int i){while(a[i--]-r);if(--r)p(i);g<<v[i]<<" ";}main(){f>>n;while(f>>x){n=0;while(r-n++&&k[n]<x);r+=n>r;k[a[++i]=n]=v[i]=x;}g<<r<<" ",p(i);} | ^~~~ main.cpp: In function 'int main()': main.cpp:2:213: warning: operation on 'i' may be undefined [-Wsequence-point] 2 | std::ifstream f("scmax.in");std::ofstream g("scmax.out");int n,r,i,x,v[1<<17],k[1<<17],a[1<<17];void p(int i){while(a[i--]-r);if(--r)p(i);g<<v[i]<<" ";}main(){f>>n;while(f>>x){n=0;while(r-n++&&k[n]<x);r+=n>r;k[a[++i]=n]=v[i]=x;}g<<r<<" ",p(i);} | ^~~