highway.cpp: In function 'int main()':
highway.cpp:22:25: warning: 'p3' may be used uninitialized in this function [-Wmaybe-uninitialized]
if(i != p1 && i != p2 && i != p3) s.insert(i);
^
highway.cpp:22:19: warning: 'p2' may be used uninitialized in this function [-Wmaybe-uninitialized]
if(i != p1 && i != p2 && i != p3) s.insert(i);
^
highway.cpp:44:15: warning: 'p1' may be used uninitialized in this function [-Wmaybe-uninitialized]
if(!isOnLine(p1, p2, i)){
^
office.c: In function 'int isOnLine(int, int, int)':
office.c:85:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:88:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:92:37: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Too many questions");
^
office.c:83:7: warning: unused variable 'i' [-Wunused-variable]
int i;
^
office.c: In function 'void Answer(int, int, int, int)':
office.c:123:29: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(0, "Protocol error");
^
office.c:128:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if( (-_Apa[na1]==_N-3) && (na2!=na1) && (nb2!=na1) ||
^
office.c:130:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:132:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:134:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if( (-_Apa[na2]==_N-3) && (na1!=na2) && (nb1!=na2) ||
^
office.c:136:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:138:36: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:140:33: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(false, "Wrong answer");
^
office.c:142:23: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
_Fin(true, "Correct");
^
office.c:120:27: warning: unused variable 'pont' [-Wunused-variable]
int na1, nb1, na2, nb2, pont;
^
office.c: In function 'void _doInit()':
office.c:33:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &_N);
^