Compilare: main.cpp: In function 'bool cautare(std::pair<int, int>)': main.cpp:24:55: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (a.first<=x1 || a.first<=x2 && a.first>=x1 && a.second<=y1) ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ograzi.in","r",stdin); ^ main.cpp:46:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ograzi.out","w",stdout); ^ main.cpp:47:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&n,&m,&latime,&inaltime); ^ main.cpp:50:58: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&ograzi[i].first,&ograzi[i].second); ^ main.cpp:54:50: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&oi[i].first,&oi[i].second); ^