#include <bits/stdc++.h> using namespace std; int main() { #ifdef LOCAL ("D:\File\202209_2_3.in", "r", stdin); #endif int n; int a,b; cin>>n; for(int i = 0;i<n;i++){ cin>>a>>b; int s = 0; for(int j = a;j<=b;j++){ int x = j; int y = 0; while(x>0){ y = y*10+x%10; x = x / 10; } if(y == j){ s++; } } cout<<s<<endl; } return 0; }
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感谢！！！