Compilare: main.cpp: In function 'void update(int, int)': main.cpp:67:9: warning: statement has no effect [-Wunused-value] 67 | for(x;x<=nrp;x+=(x&(-x))) | ^ main.cpp: In function 'int query(int)': main.cpp:77:9: warning: statement has no effect [-Wunused-value] 77 | for(x;x!=0;x-=(x&(-x))) | ^ main.cpp: In function 'int main()': main.cpp:109:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 109 | if(query(st[v[i].x])==0 && query(st[v[i].y])==0) | ^~ main.cpp:111:17: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 111 | int z=v[i].l2; | ^~~