Compilare: user.cpp: In function ‘drept intersectie(drept, drept)’: user.cpp:15:20: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(di.y1>di.y2 && di.x2>di.x1 || di.y2<di.y1 && di.x2<di.x1) ^ user.cpp: In function ‘int main()’: user.cpp:38:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reuniune.in","r",stdin); ^ user.cpp:39:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("reuniune.out","w",stdout); ^ user.cpp:41:122: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d%d%d%d%d%d",&d1.x1,&d1.y1,&d1.x2,&d1.y2,&d2.x1,&d2.y1,&d2.x2,&d2.y2,&d3.x1,&d3.y1,&d3.x2,&d3.y2); ^