Compilare: main.cpp: In function 'int main()': main.cpp:44:30: warning: 'yAnterior' may be used uninitialized in this function [-Wmaybe-uninitialized] if (x==xAnterior || y==yAnterior) ~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:44:13: warning: 'xAnterior' may be used uninitialized in this function [-Wmaybe-uninitialized] if (x==xAnterior || y==yAnterior) ^~ main.cpp:122:18: warning: 'y4' may be used uninitialized in this function [-Wmaybe-uninitialized] q3=(x4-x1+y4+y1)/2; ~~~~~^~~ main.cpp:116:21: warning: 'y3' may be used uninitialized in this function [-Wmaybe-uninitialized] q1=(x2-x3+y2+y3)/2; ~~~~~~~~~^~~~ main.cpp:116:18: warning: 'y2' may be used uninitialized in this function [-Wmaybe-uninitialized] q1=(x2-x3+y2+y3)/2; ~~~~~^~~ main.cpp:122:21: warning: 'y1' may be used uninitialized in this function [-Wmaybe-uninitialized] q3=(x4-x1+y4+y1)/2; ~~~~~~~~~^~~~ main.cpp:122:15: warning: 'x4' may be used uninitialized in this function [-Wmaybe-uninitialized] q3=(x4-x1+y4+y1)/2; ~~^~~ main.cpp:116:15: warning: 'x3' may be used uninitialized in this function [-Wmaybe-uninitialized] q1=(x2-x3+y2+y3)/2; ~~^~~ main.cpp:116:15: warning: 'x2' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:123:11: warning: 'x1' may be used uninitialized in this function [-Wmaybe-uninitialized] p3=q3-y1+x1; ~~^~~~~~~~~