Compilare: main.cpp: In function 'void update(int, int, int, int, int)': main.cpp:13:7: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:15:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' aint[nod]=max(aint[2*nod],aint[2*nod+1]); ^~~~ main.cpp: In function 'int main()': main.cpp:31:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.in","r",stdin); ^ main.cpp:32:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("arbint.out","w",stdout); ^ main.cpp:34:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&q); ^ main.cpp:37:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a); ^ main.cpp:43:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&t,&a,&b); ^