#include<bits/stdc++.h> using namespace std; int main() { int a,b; cin>>a>>b; int c=0; for(int i=a+1;i<b;i++)//从a+1到b-1循环 { if((i%4==0 and i%100!=0)or i%400==0) { c+=i; } } cout<<c; return 0; }
#include<bits/stdc++.h> using namespace std; int main() { int a,b; cin>>a>>b; int s=0; for(int i=(a+1);i<b;i++) { if(i%4==0&&i%100!=0||i%400==0) { s=s+i; } } cout<<s; return 0; }
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