Compilare: main.cpp: In function 'bool cmp(interv, interv)': main.cpp:15:33: warning: suggest parentheses around '&&' within '||' [-Wparentheses] return (A.a<B.a || A.a==B.a && A.b<B.b || A.a==B.a && A.b==B.b && A.z<B.z); ~~~~~~~~~^~~~~~~~~~ main.cpp:15:68: warning: suggest parentheses around '&&' within '||' [-Wparentheses] return (A.a<B.a || A.a==B.a && A.b<B.b || A.a==B.a && A.b==B.b && A.z<B.z); ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp: In function 'void citire()': main.cpp:23:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ main.cpp:27:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld %lld %lld",&a,&b,&z); ^ main.cpp: In function 'int main()': main.cpp:65:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("troll.in","r",stdin); ^ main.cpp:66:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("troll.out","w",stdout); ^