Compilare: main.cpp:3:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 3 | main(){freopen("stramosi.in","r",stdin);freopen("stramosi.out","w",stdout); | ^~~~ main.cpp: In function 'int main()': main.cpp:8:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 8 | for(k=1;1<<k<=n;k++);for(;j&&k--;)if(i&1<<k)j=a[k][j]; | ^~~ main.cpp:8:22: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 8 | for(k=1;1<<k<=n;k++);for(;j&&k--;)if(i&1<<k)j=a[k][j]; | ^~~