Compilare: main.cpp: In function 'int updatel(int, int, int)': main.cpp:16:21: warning: no return statement in function returning non-void [-Wreturn-type] aint[nod].second=0;}} ^ main.cpp: In function 'int update(int, int, int, int, int, long long int)': main.cpp:28:42: warning: control reaches end of non-void function [-Wreturn-type] aint[nod]=max(aint[nod*2],aint[nod*2+1]);} ^ main.cpp: In function 'int main()': main.cpp:38:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("picazo.in","r",stdin); ^ main.cpp:39:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("picazo.out","w",stdout); ^ main.cpp:41:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&n,&k,&q); ^ main.cpp:44:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^