Compilare: main.cpp: In function 'int sign(int)': main.cpp:24:16: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return prevs; ^~~~~ main.cpp: In function 'int punct(int, int, int)': main.cpp:42:135: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return sign(ari)==sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &&sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf))==sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))&& ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))==sign(arie(p[3][i].x,p[3][i].y,p[1][i].x,p[1][i].y,xf,yf)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:17: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return sign(ari)==sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &&sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf))==sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))&& ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:135: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return sign(ari)==sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &&sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf))==sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))&& ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))==sign(arie(p[3][i].x,p[3][i].y,p[1][i].x,p[1][i].y,xf,yf)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:135: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] main.cpp:42:17: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return sign(ari)==sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &&sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf))==sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))&& ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:135: warning: 'prevs' may be used uninitialized in this function [-Wmaybe-uninitialized] return sign(ari)==sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ &&sign(arie(p[1][i].x,p[1][i].y,p[2][i].x,p[2][i].y,xf,yf))==sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))&& ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ sign(arie(p[2][i].x,p[2][i].y,p[3][i].x,p[3][i].y,xf,yf))==sign(arie(p[3][i].x,p[3][i].y,p[1][i].x,p[1][i].y,xf,yf)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~