0_0_25906572_31894.cpp: In function 'int main()': 0_0_25906572_31894.cpp:75:13: error: 'q' was not declared in this scope q[++head].v=a[i].st; ^ 0_0_25906572_31894.cpp:91:13: error: 'q' was not declared in this scope q[++head].v=a[i].st; ^