Compilare: main.cpp: In function 'int main()': main.cpp:15:1: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) ^~~ main.cpp:19:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' ans=-2e18; ^~~ main.cpp:19:7: warning: overflow in implicit constant conversion [-Woverflow] ans=-2e18; ^~~~