View Compilation Error

0_0_17887634_5772.cpp: In function 'int main()':
0_0_17887634_5772.cpp:7:29: error: 'scanf' was not declared in this scope
     while(scanf("%d%d",&n,&m)!=EOF)
                             ^
0_0_17887634_5772.cpp:7:32: error: 'EOF' was not declared in this scope
     while(scanf("%d%d",&n,&m)!=EOF)
                                ^
0_0_17887634_5772.cpp:28:31: error: 'printf' was not declared in this scope
         printf("%d\n",dp[n][m]);
                               ^