Submission #1444239
Source Code Expand
#include <bits/stdc++.h> using namespace std; // why am I so weak int n, m; int a[200055]; int cnt[200055]; int d[200055]; int main() { scanf("%d %d", &n, &m); for (int i = 0; i < n; i++) { scanf("%d", &a[i]); a[i]--; cnt[a[i]]++; } int res = 0; for (int i = 0; i < n; i++) { for (int j = i; j >= max(0, i - cnt[i] + 1); j--) { d[j]++; } } for (int i = 0; i < n; i++) if (d[i] == 0) { res++; } while (m--) { int x, y; scanf("%d %d", &x, &y); x--, y--; if (a[x] - cnt[a[x]] + 1 >= 0) { d[a[x] - cnt[a[x]] + 1]--; if (d[a[x] - cnt[a[x]] + 1] == 0) { res++; } } cnt[a[x]]--; cnt[y]++; if (y - cnt[y] + 1 >= 0) { d[y - cnt[y] + 1]++; if (d[y - cnt[y] + 1] == 1) { res--; } } a[x] = y; printf("%d\n", res); } return 0; }
Submission Info
Submission Time | |
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Task | C - Snuke and Spells |
User | IanWong |
Language | C++14 (GCC 5.4.1) |
Score | 1000 |
Code Size | 870 Byte |
Status | AC |
Exec Time | 91 ms |
Memory | 3712 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:13:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &m); ^ ./Main.cpp:16:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^ ./Main.cpp:35:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^
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 | 91 ms | 3712 KB |
a2.txt | AC | 89 ms | 3712 KB |
a3.txt | AC | 89 ms | 3712 KB |
a4.txt | AC | 89 ms | 3712 KB |
a5.txt | AC | 87 ms | 3584 KB |
a6.txt | AC | 89 ms | 3712 KB |
b1.txt | AC | 88 ms | 3712 KB |
b2.txt | AC | 88 ms | 3712 KB |
c1.txt | AC | 89 ms | 3712 KB |
c2.txt | AC | 91 ms | 3712 KB |
d1.txt | AC | 88 ms | 3712 KB |
d2.txt | AC | 89 ms | 3712 KB |
d3.txt | AC | 89 ms | 3712 KB |
d4.txt | AC | 89 ms | 3712 KB |
e1.txt | AC | 89 ms | 3712 KB |
e2.txt | AC | 89 ms | 3712 KB |
e3.txt | AC | 89 ms | 3712 KB |
e4.txt | AC | 89 ms | 3712 KB |
f1.txt | AC | 74 ms | 3072 KB |
f2.txt | AC | 73 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 | 1 ms | 256 KB |
subtask_a2.txt | AC | 1 ms | 256 KB |
subtask_a3.txt | AC | 1 ms | 256 KB |
subtask_a4.txt | AC | 1 ms | 256 KB |
subtask_a5.txt | AC | 1 ms | 256 KB |
subtask_a6.txt | AC | 1 ms | 256 KB |
subtask_b1.txt | AC | 1 ms | 256 KB |
subtask_b2.txt | AC | 1 ms | 256 KB |
subtask_c1.txt | AC | 1 ms | 256 KB |
subtask_c2.txt | AC | 1 ms | 256 KB |
subtask_d1.txt | AC | 1 ms | 256 KB |
subtask_d2.txt | AC | 1 ms | 256 KB |
subtask_d3.txt | AC | 1 ms | 256 KB |
subtask_d4.txt | AC | 1 ms | 256 KB |
subtask_e1.txt | AC | 1 ms | 256 KB |
subtask_e2.txt | AC | 1 ms | 256 KB |
subtask_e3.txt | AC | 1 ms | 256 KB |
subtask_e4.txt | AC | 1 ms | 256 KB |
subtask_f1.txt | AC | 1 ms | 256 KB |
subtask_f2.txt | AC | 1 ms | 256 KB |