Compilare: main.cpp: In function 'int main()': main.cpp:27:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 27 | for (int i = 1; i <= n; i++) | ^~~ main.cpp:30:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 30 | int nr1 = 1; | ^~~ main.cpp:32:18: warning: 'xn' may be used uninitialized [-Wmaybe-uninitialized] 32 | xn[1] = !xn[1]; | ~~~~^ main.cpp:26:10: note: 'xn' declared here 26 | bool xn[100005]; | ^~