View Compilation Error

0_0_24228596_27017.cpp: In function 'int main()':
0_0_24228596_27017.cpp:30:5: error: expected ';' before 'int'
     int n,V,m;
     ^
0_0_24228596_27017.cpp:32:24: error: 'n' was not declared in this scope
     while(~scanf("%d",&n),n)  {
                        ^
0_0_24228596_27017.cpp:37:21: error: 'm' was not declared in this scope
         scanf("%d",&m);
                     ^
0_0_24228596_27017.cpp:38:9: error: 'V' was not declared in this scope
         V= m - 5;
         ^