0_0_21566837_23638.cpp:69:11: error: redefinition of 'const int maxn'
const int maxn = 250000;
^
0_0_21566837_23638.cpp:15:11: note: 'const int maxn' previously defined here
const int maxn = 250000;
^
0_0_21566837_23638.cpp:70:14: error: redefinition of 'int a [250010]'
int a[maxn+10],b[maxn+10];
^
0_0_21566837_23638.cpp:16:5: note: 'int a [250010]' previously declared here
int a[maxn+10],b[maxn+10];
^
0_0_21566837_23638.cpp:70:25: error: redefinition of 'int b [250010]'
int a[maxn+10],b[maxn+10];
^
0_0_21566837_23638.cpp:16:16: note: 'int b [250010]' previously declared here
int a[maxn+10],b[maxn+10];
^
0_0_21566837_23638.cpp:71:17: error: redefinition of 'int dq [500010]'
int dq[2*maxn+10];
^
0_0_21566837_23638.cpp:17:5: note: 'int dq [500010]' previously declared here
int dq[2*maxn+10];
^
0_0_21566837_23638.cpp:72:11: error: redefinition of 'const int mod'
const int mod = 1e9+7;
^
0_0_21566837_23638.cpp:18:11: note: 'const int mod' previously defined here
const int mod = 1e9+7;
^
0_0_21566837_23638.cpp: In function 'int main()':
0_0_21566837_23638.cpp:74:5: error: redefinition of 'int main()'
int main()
^
0_0_21566837_23638.cpp:20:5: note: 'int main()' previously defined here
int main()
^
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