View Compilation Error

0_0_31944506_6683.cpp: In function 'int main()':
0_0_31944506_6683.cpp:3:9: error: 'T' was not declared in this scope
 { while(T--)
         ^
0_0_31944506_6683.cpp:5:17: error: 'a' was not declared in this scope
   scanf("%d%d",&a,&b);
                 ^
0_0_31944506_6683.cpp:5:20: error: 'b' was not declared in this scope
   scanf("%d%d",&a,&b);
                    ^
0_0_31944506_6683.cpp:6:3: error: 'sum' was not declared in this scope
   sum=a%100+b%100;
   ^
0_0_31944506_6683.cpp:7:5: error: 't' was not declared in this scope
     t=sum%100;
     ^