0_0_38660914_7711.cpp:4:45: error: redefinition of 'long long int n'
int n, sum = 1, f[30000010], mod = 1e9 + 7, n, m;
^
0_0_38660914_7711.cpp:4:5: note: 'long long int n' previously declared here
int n, sum = 1, f[30000010], mod = 1e9 + 7, n, m;
^
0_0_38660914_7711.cpp: In function 'int main()':
0_0_38660914_7711.cpp:9:17: error: 't' was not declared in this scope
scanf("%lld", &t);
^
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