multiplu.cpp: In function 'bool comp(stacks, stacks)': multiplu.cpp:12: warning: suggest parentheses around '&&' within '||' multiplu.cpp: In function 'int main()': multiplu.cpp:56: warning: suggest parentheses around '&&' within '||' multiplu.cpp:56: warning: suggest parentheses around '&&' within '||' multiplu.cpp:18: warning: unused variable 'j' multiplu.cpp:18: warning: 'mij' may be used uninitialized in this function multiplu.cpp:18: warning: 'i_min' may be used uninitialized in this function multiplu.cpp:18: warning: 'j_min' may be used uninitialized in this function multiplu.cpp:18: warning: 'mij_min' may be used uninitialized in this function