View Compilation Error

0_0_33196345_3614.cpp: In function 'int main()':
0_0_33196345_3614.cpp:5:30: error: 'scanf' was not declared in this scope
     while(scanf("%d %d",&m,&n)!=EOF) {
                              ^
0_0_33196345_3614.cpp:5:33: error: 'EOF' was not declared in this scope
     while(scanf("%d %d",&m,&n)!=EOF) {
                                 ^
0_0_33196345_3614.cpp:18:52: error: 'printf' was not declared in this scope
             printf("%d %d %d\n",s1+1,s2+1,a[s1][s2]);
                                                    ^