0_0_25902345_11498.cpp: In function 'int main()': 0_0_25902345_11498.cpp:40:23: error: 'm' was not declared in this scope scanf("%d%d",&m,&n); ^ 0_0_25902345_11498.cpp:40:26: error: 'n' was not declared in this scope scanf("%d%d",&m,&n); ^