Compilare: main.cpp: In function 'int f(int)': main.cpp:39:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) ^~~ main.cpp:45:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' dfs(root,0,val); ^~~ main.cpp:49:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;i++) ^~~ main.cpp:53:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' while((int)points.size()<k) ^~~~~ main.cpp: In function 'int main()': main.cpp:104:9: warning: unused variable 'x' [-Wunused-variable] int x=f(sol); ^ main.cpp:74:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("salvare.in","r",stdin); ^ main.cpp:75:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("salvare.out","w",stdout); ^ main.cpp:77:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^ main.cpp:82:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ main.cpp: In function 'int f(int)': main.cpp:45:24: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized] dfs(root,0,val); ^ main.cpp: In function 'int main()': main.cpp:45:24: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized] dfs(root,0,val); ^ main.cpp:37:9: note: 'root' was declared here int root; ^~~~