0_0_39016059_5942.cpp: In function 'int main()':
0_0_39016059_5942.cpp:8:5: error: '_int64' was not declared in this scope
8 | _int64 a[25],b[25],ans;
| ^~~~~~
0_0_39016059_5942.cpp:9:5: error: 'a' was not declared in this scope
9 | a[0] = 1;a[1]=1,a[2] = 2;
| ^
0_0_39016059_5942.cpp:12:9: error: 'b' was not declared in this scope
12 | b[2] = 1,b[3] =2;
| ^
0_0_39016059_5942.cpp:19:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
19 | ans=a[n]/a[m]/a[n-m]*b[m];
| ^~~
| abs
|