0_0_25774531_31102.cpp: In function 'int main()': 0_0_25774531_31102.cpp:18:6: error: 's' was not declared in this scope a[s]++; ^ 0_0_25774531_31102.cpp:20:10: error: 's' was not declared in this scope sort(a[s],a[s]+n) ^