Submission #1697371
Source Code Expand
#include <cstdio> #define MAX_N 100001 int N, counts, a[MAX_N]; bool checked[MAX_N]; int main() { scanf("%d", &N); for (int i = 1; i <= N; i++) scanf("%d", &a[i]); for (int i = 1; i <= N; i++) { if (!checked[i] && i == a[a[i]]) { checked[i] = true; checked[a[i]] = true; counts++; } } printf("%d\n", counts); return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Friendly Rabbits |
User | nersery |
Language | C++14 (GCC 5.4.1) |
Score | 200 |
Code Size | 396 Byte |
Status | AC |
Exec Time | 10 ms |
Memory | 640 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:10:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ ./Main.cpp:12:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 200 / 200 | ||||
Status |
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|
Set Name | Test Cases |
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Sample | 0_00.txt, 0_01.txt, 0_02.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 1 ms | 128 KB |
0_01.txt | AC | 1 ms | 128 KB |
0_02.txt | AC | 1 ms | 128 KB |
1_00.txt | AC | 1 ms | 128 KB |
1_01.txt | AC | 10 ms | 640 KB |
1_02.txt | AC | 10 ms | 512 KB |
1_03.txt | AC | 10 ms | 640 KB |
1_04.txt | AC | 10 ms | 640 KB |
1_05.txt | AC | 10 ms | 640 KB |
1_06.txt | AC | 10 ms | 640 KB |
1_07.txt | AC | 10 ms | 512 KB |
1_08.txt | AC | 4 ms | 256 KB |
1_09.txt | AC | 8 ms | 512 KB |
1_10.txt | AC | 7 ms | 384 KB |
1_11.txt | AC | 2 ms | 256 KB |