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#include<bits/stdc++.h> using namespace std;
typedef long long LL; const int N = 1e6 + 10; LL q[N]; LL n,m; LL tmp; LL maxNum = 0;
int main(){ scanf("%11d%11d", &n, &m); for(int i = 0; i < n; i++){ scanf("%11d", &q[i]); maxNum = max(maxNum,q[i]); } LL l = 1, r = maxNum; while(l < r){ int mid = l + r + 1>> 1; tmp = 0; for(int i = 0; i < n; i++){ if(q[i] > mid){ tmp += q[i] - mid; } } if(tmp >= m) l = mid; else r = mid - 1; } printf("%lld",l); return 0; }
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