View Compilation Error

0_0_20504605_22420.c: In function 'main':
0_0_20504605_22420.c:4:5: error: 'intm' undeclared (first use in this function)
     intm,n,i,j;
     ^
0_0_20504605_22420.c:4:5: note: each undeclared identifier is reported only once for each function it appears in
0_0_20504605_22420.c:4:10: error: 'n' undeclared (first use in this function)
     intm,n,i,j;
          ^
0_0_20504605_22420.c:4:12: error: 'i' undeclared (first use in this function)
     intm,n,i,j;
            ^
0_0_20504605_22420.c:4:14: error: 'j' undeclared (first use in this function)
     intm,n,i,j;
              ^
0_0_20504605_22420.c:5:5: error: 'doublesum' undeclared (first use in this function)
     doublesum;
     ^
0_0_20504605_22420.c:6:28: error: 'm' undeclared (first use in this function)
     while(EOF!=scanf("%d",&m))
                            ^
0_0_20504605_22420.c:11:12: error: 'sum' undeclared (first use in this function)
            sum=1;
            ^