Compilare: main.cpp: In function 'int main()': main.cpp:35:5: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(!node[it->second].assigned) ^ main.cpp:50:8: warning: unused variable 'x' [-Wunused-variable] int x, y; ^ main.cpp:50:11: warning: unused variable 'y' [-Wunused-variable] int x, y; ^ main.cpp:26:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &N); ^ main.cpp:28:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &aux); ^