Compilare: main.cpp: In function 'int main()': main.cpp:59:24: warning: 'r' may be used uninitialized [-Wmaybe-uninitialized] 59 | for(int i = level[r]; i <= k - max_level[r] + level[r];++i) | ^ main.cpp:49:9: note: 'r' was declared here 49 | int r; | ^