Compilare: user.cpp: In function ‘int main()’: user.cpp:120:92: warning: ‘ymin23’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol=min(sol, mini23+mat1[i][j]-2+min(mat2[i][j]-mat2[xmin23][ymin23], mat3[i][j]-mat3[xmin23][ymin23])+1); ^ user.cpp:120:92: warning: ‘xmin23’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:111:92: warning: ‘ymin12’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol=min(sol, mini12+mat3[i][j]-2+min(mat1[i][j]-mat1[xmin12][ymin12], mat2[i][j]-mat2[xmin12][ymin12])+1); ^ user.cpp:111:92: warning: ‘xmin12’ may be used uninitialized in this function [-Wmaybe-uninitialized]