Submission #3453092
Source Code Expand
#include<cstdio> using namespace std; const int maxN=2e5 + 100; int a[maxN+1],vis[maxN+1],sum[maxN+1]; int n,m,pos; int main() { scanf("%d%d",&n,&m); int ans=n; for(int i=1;i<=n;i++) { scanf("%d",&a[i]); sum[a[i]]++; pos=a[i]-sum[a[i]]; if(pos>=0) { if(!vis[pos]) ans--; vis[pos]++; } } while(m--) { int x,y; scanf("%d%d",&x,&y); pos=a[x]-sum[a[x]]; if(pos>=0) { vis[pos]--; if(!vis[pos]) ans++; } sum[a[x]]--; a[x]=y; sum[y]++; pos=a[x]-sum[a[x]]; if(pos>=0) { if(!vis[pos]) ans--; vis[pos]++; } printf("%d\n",ans); } return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Snuke and Spells |
User | luogu_bot1 |
Language | C++ (GCC 5.4.1) |
Score | 1000 |
Code Size | 843 Byte |
Status | AC |
Exec Time | 92 ms |
Memory | 3712 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:8:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ ./Main.cpp:12:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i]); ^ ./Main.cpp:24:28: 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 | 92 ms | 3712 KB |
a2.txt | AC | 92 ms | 3712 KB |
a3.txt | AC | 92 ms | 3712 KB |
a4.txt | AC | 92 ms | 3712 KB |
a5.txt | AC | 89 ms | 3584 KB |
a6.txt | AC | 92 ms | 3712 KB |
b1.txt | AC | 92 ms | 3712 KB |
b2.txt | AC | 92 ms | 3712 KB |
c1.txt | AC | 91 ms | 3712 KB |
c2.txt | AC | 91 ms | 3712 KB |
d1.txt | AC | 91 ms | 3712 KB |
d2.txt | AC | 92 ms | 3584 KB |
d3.txt | AC | 92 ms | 3584 KB |
d4.txt | AC | 92 ms | 3584 KB |
e1.txt | AC | 91 ms | 3712 KB |
e2.txt | AC | 91 ms | 3712 KB |
e3.txt | AC | 92 ms | 3712 KB |
e4.txt | AC | 92 ms | 3712 KB |
f1.txt | AC | 73 ms | 3072 KB |
f2.txt | AC | 73 ms | 3072 KB |
sample1.txt | AC | 1 ms | 128 KB |
sample2.txt | AC | 1 ms | 128 KB |
sample3.txt | AC | 1 ms | 128 KB |
subtask_a1.txt | AC | 1 ms | 128 KB |
subtask_a2.txt | AC | 1 ms | 128 KB |
subtask_a3.txt | AC | 1 ms | 128 KB |
subtask_a4.txt | AC | 1 ms | 128 KB |
subtask_a5.txt | AC | 1 ms | 128 KB |
subtask_a6.txt | AC | 1 ms | 128 KB |
subtask_b1.txt | AC | 1 ms | 128 KB |
subtask_b2.txt | AC | 1 ms | 128 KB |
subtask_c1.txt | AC | 1 ms | 128 KB |
subtask_c2.txt | AC | 1 ms | 128 KB |
subtask_d1.txt | AC | 1 ms | 128 KB |
subtask_d2.txt | AC | 1 ms | 128 KB |
subtask_d3.txt | AC | 1 ms | 128 KB |
subtask_d4.txt | AC | 1 ms | 128 KB |
subtask_e1.txt | AC | 1 ms | 128 KB |
subtask_e2.txt | AC | 1 ms | 128 KB |
subtask_e3.txt | AC | 1 ms | 128 KB |
subtask_e4.txt | AC | 1 ms | 128 KB |
subtask_f1.txt | AC | 1 ms | 128 KB |
subtask_f2.txt | AC | 1 ms | 128 KB |