Submission #1000595
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int md = 1000000007; const int N = 1234567; pair <int, int> a[N]; int main() { int n; scanf("%d", &n); for (int i = 0; i < n + n; i++) { scanf("%d", &a[i].first); a[i].second = i; } sort(a, a + n + n); int ans = 1; int balance = 0; for (int i = 0; i < n + n; i++) { if (a[i].second < n) { if (balance < 0) { ans = (long long) ans * (-balance) % md; } balance++; } else { if (balance > 0) { ans = (long long) ans * balance % md; } balance--; } } printf("%d\n", ans); return 0; }
Submission Info
Submission Time | |
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Task | A - 1D Matching |
User | tourist |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 665 Byte |
Status | AC |
Exec Time | 43 ms |
Memory | 1792 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:13:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:15:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &a[i].first); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
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Set Name | Test Cases |
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Sample | example0.txt, example1.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, example0.txt, example1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 26 ms | 1152 KB |
001.txt | AC | 11 ms | 640 KB |
002.txt | AC | 14 ms | 768 KB |
003.txt | AC | 16 ms | 768 KB |
004.txt | AC | 38 ms | 1664 KB |
005.txt | AC | 42 ms | 1792 KB |
006.txt | AC | 42 ms | 1792 KB |
007.txt | AC | 42 ms | 1792 KB |
008.txt | AC | 43 ms | 1792 KB |
009.txt | AC | 42 ms | 1792 KB |
010.txt | AC | 42 ms | 1792 KB |
011.txt | AC | 42 ms | 1792 KB |
example0.txt | AC | 3 ms | 256 KB |
example1.txt | AC | 3 ms | 256 KB |