Submission #2699726
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int Nmax = 2e5 + 5; int n, i, L, q, cnt[Nmax], A[Nmax], x, y, pos, a[Nmax]; int main() { // freopen("input", "r", stdin); // freopen("output", "w", stdout); cin.sync_with_stdio(false); cin >> n >> q; for(i=1; i<=n; ++i) { cin >> A[i]; ++cnt[A[i]]; } for(i=1; i<=n; ++i) { ++a[max(0, i - cnt[i])]; --a[i]; } L = (a[0] > 0); for(i=1; i<=n; ++i) { a[i] += a[i-1]; L += (a[i] > 0); } while(q--) { cin >> pos >> y; x = A[pos]; A[pos] = y; if(x >= cnt[x]) { --a[x - cnt[x]]; L -= (!a[x - cnt[x]]); } --cnt[x]; ++cnt[y]; if(y >= cnt[y]) { L += (!a[y - cnt[y]]); ++a[y - cnt[y]]; } cout << n - L << '\n'; } return 0; }
Submission Info
Submission Time | |
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Task | C - Snuke and Spells |
User | Alexa2001 |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 994 Byte |
Status | AC |
Exec Time | 389 ms |
Memory | 3840 KB |
Judge Result
Set Name | Sample | subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | 500 / 500 | ||||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
subtask | sample1.txt, sample2.txt, sample3.txt, subtask_a1.txt, subtask_a2.txt, subtask_a3.txt, subtask_a4.txt, subtask_a5.txt, subtask_a6.txt, subtask_b1.txt, subtask_b2.txt, subtask_c1.txt, subtask_c2.txt, subtask_d1.txt, subtask_d2.txt, subtask_d3.txt, subtask_d4.txt, subtask_e1.txt, subtask_e2.txt, subtask_e3.txt, subtask_e4.txt, subtask_f1.txt, subtask_f2.txt |
All | sample1.txt, sample2.txt, sample3.txt, a1.txt, a2.txt, a3.txt, a4.txt, a5.txt, a6.txt, b1.txt, b2.txt, c1.txt, c2.txt, d1.txt, d2.txt, d3.txt, d4.txt, e1.txt, e2.txt, e3.txt, e4.txt, f1.txt, f2.txt, sample1.txt, sample2.txt, sample3.txt, subtask_a1.txt, subtask_a2.txt, subtask_a3.txt, subtask_a4.txt, subtask_a5.txt, subtask_a6.txt, subtask_b1.txt, subtask_b2.txt, subtask_c1.txt, subtask_c2.txt, subtask_d1.txt, subtask_d2.txt, subtask_d3.txt, subtask_d4.txt, subtask_e1.txt, subtask_e2.txt, subtask_e3.txt, subtask_e4.txt, subtask_f1.txt, subtask_f2.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
a1.txt | AC | 382 ms | 3840 KB |
a2.txt | AC | 385 ms | 3840 KB |
a3.txt | AC | 380 ms | 3712 KB |
a4.txt | AC | 385 ms | 3712 KB |
a5.txt | AC | 378 ms | 3712 KB |
a6.txt | AC | 381 ms | 3712 KB |
b1.txt | AC | 376 ms | 3712 KB |
b2.txt | AC | 385 ms | 3712 KB |
c1.txt | AC | 384 ms | 3712 KB |
c2.txt | AC | 383 ms | 3712 KB |
d1.txt | AC | 378 ms | 3712 KB |
d2.txt | AC | 380 ms | 3712 KB |
d3.txt | AC | 380 ms | 3712 KB |
d4.txt | AC | 378 ms | 3712 KB |
e1.txt | AC | 380 ms | 3712 KB |
e2.txt | AC | 389 ms | 3712 KB |
e3.txt | AC | 381 ms | 3712 KB |
e4.txt | AC | 376 ms | 3712 KB |
f1.txt | AC | 369 ms | 3072 KB |
f2.txt | AC | 367 ms | 3072 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |
subtask_a1.txt | AC | 2 ms | 256 KB |
subtask_a2.txt | AC | 1 ms | 256 KB |
subtask_a3.txt | AC | 1 ms | 256 KB |
subtask_a4.txt | AC | 2 ms | 256 KB |
subtask_a5.txt | AC | 2 ms | 256 KB |
subtask_a6.txt | AC | 2 ms | 256 KB |
subtask_b1.txt | AC | 2 ms | 256 KB |
subtask_b2.txt | AC | 1 ms | 256 KB |
subtask_c1.txt | AC | 2 ms | 256 KB |
subtask_c2.txt | AC | 2 ms | 256 KB |
subtask_d1.txt | AC | 2 ms | 256 KB |
subtask_d2.txt | AC | 2 ms | 256 KB |
subtask_d3.txt | AC | 1 ms | 256 KB |
subtask_d4.txt | AC | 2 ms | 256 KB |
subtask_e1.txt | AC | 2 ms | 256 KB |
subtask_e2.txt | AC | 2 ms | 256 KB |
subtask_e3.txt | AC | 2 ms | 256 KB |
subtask_e4.txt | AC | 2 ms | 256 KB |
subtask_f1.txt | AC | 2 ms | 256 KB |
subtask_f2.txt | AC | 2 ms | 256 KB |