View Compilation Error

0_0_15004149_30383.cpp: In function 'int main()':
0_0_15004149_30383.cpp:31:5: error: expected ';' before 'int'
     int n,m,k,q;
     ^
0_0_15004149_30383.cpp:34:27: error: 'n' was not declared in this scope
         scanf("%d%d%d%d",&n,&m,&q,&k);
                           ^
0_0_15004149_30383.cpp:34:30: error: 'm' was not declared in this scope
         scanf("%d%d%d%d",&n,&m,&q,&k);
                              ^
0_0_15004149_30383.cpp:34:33: error: 'q' was not declared in this scope
         scanf("%d%d%d%d",&n,&m,&q,&k);
                                 ^
0_0_15004149_30383.cpp:34:36: error: 'k' was not declared in this scope
         scanf("%d%d%d%d",&n,&m,&q,&k);
                                    ^