Compilare: user.cpp: In function ‘void solve()’: user.cpp:105:294: warning: operation on ‘l[coada2[u2].excursie::x][coada2[u2].excursie::y]’ may be undefined [-Wsequence-point] l[coada2[u2].x][coada2[u2].y]=min(l[coada2[u2].x][coada2[u2].y],l[coada2[u2].x][coada2[u2].y]=l[coada1[p].x][coada1[p].y]+ sqrt( (cota[coada1[p].x][coada1[p].y] - cota[coada2[u2].x][coada2[u2].y]) * (cota[coada1[p].x][coada1[p].y] - cota[coada2[u2].x][coada2[u2].y]) +1 )); ^ user.cpp:80:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(verif(coada1[p].x+dx[i],coada1[p].y+dy[i])==true) ^ user.cpp:124:292: warning: operation on ‘l[coada2[u2].excursie::x][coada2[u2].excursie::y]’ may be undefined [-Wsequence-point] l[coada2[u2].x][coada2[u2].y]=min(l[coada2[u2].x][coada2[u2].y],l[coada2[u2].x][coada2[u2].y]=l[coada2[p2].x][coada2[p2].y]+ sqrt( (cota[coada2[p2].x][coada2[p2].y] - cota[coada2[u2].x][coada2[u2].y]) * (cota[coada2[p2].x][coada2[p2].y] - cota[coada2[u2].x][coada2[u2].y]) +1 )); ^