View Compilation Error

0_0_32483828_10543.cpp: In function 'int main()':
0_0_32483828_10543.cpp:12:13: error: expected initializer before 'scanf'
             scanf("%d %d",&id,&g);
             ^
0_0_32483828_10543.cpp:13:16: error: 'g' was not declared in this scope
             mp[g]=id;
                ^