Submission #1698352
Source Code Expand
#include "bits/stdc++.h" #define rep(i,n) for(int i=0;i<n;i++) #define ALL(v) (v).begin(),(v).end() typedef long long LL; const int INF = 1 << 25; const LL MOD = 1000000007LL; using namespace std; typedef pair<int, int> P; int T[100000]; int A[100000]; int h1[100000]; int h2[100000]; int c[100000]; int main() { int N; cin >> N; rep(i, N) cin >> T[i]; rep(i, N) cin >> A[i]; h1[0] = T[0]; for (int i = 1; i < N; i++) { if (T[i - 1] < T[i]) h1[i] = T[i]; else c[i] = T[i]; } bool NG = 0; h2[N - 1] = A[N - 1]; for (int i = N - 2; i >= 0; i--) { if (A[i + 1] < A[i]) h2[i] = A[i]; else if (c[i] == 0) c[i] = A[i]; else c[i] = min(c[i], A[i]); } LL ans = 1; rep(i, N) { bool NG = 0; NG |= (h1[i] != 0 && h2[i] != 0 && h1[i] != h2[i]); NG |= (h1[i] != 0 && h2[i] == 0 && c[i] < h1[i]); NG |= (h1[i] == 0 && h2[i] != 0 && c[i] < h2[i]); if (NG) { cout << 0 << endl; return 0; } if (h1[i] == 0 && h2[i] == 0) (ans *= c[i]) %= MOD; } cout << ans << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Two Alpinists |
User | Div9851 |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 1038 Byte |
Status | AC |
Exec Time | 122 ms |
Memory | 1920 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 1_004.txt, 1_005.txt, 1_006.txt, 1_007.txt, 1_008.txt, 1_009.txt, 1_010.txt, 1_011.txt, 1_012.txt, 1_013.txt, 1_014.txt, 1_015.txt, 1_016.txt, 1_017.txt, 1_018.txt, 1_019.txt, 1_020.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 1 ms | 256 KB |
0_001.txt | AC | 1 ms | 256 KB |
0_002.txt | AC | 1 ms | 256 KB |
0_003.txt | AC | 1 ms | 256 KB |
1_004.txt | AC | 1 ms | 256 KB |
1_005.txt | AC | 1 ms | 256 KB |
1_006.txt | AC | 1 ms | 256 KB |
1_007.txt | AC | 1 ms | 256 KB |
1_008.txt | AC | 122 ms | 1408 KB |
1_009.txt | AC | 97 ms | 1792 KB |
1_010.txt | AC | 106 ms | 1664 KB |
1_011.txt | AC | 112 ms | 1664 KB |
1_012.txt | AC | 105 ms | 1920 KB |
1_013.txt | AC | 112 ms | 1664 KB |
1_014.txt | AC | 112 ms | 1920 KB |
1_015.txt | AC | 117 ms | 1536 KB |
1_016.txt | AC | 105 ms | 1792 KB |
1_017.txt | AC | 105 ms | 1408 KB |
1_018.txt | AC | 99 ms | 1536 KB |
1_019.txt | AC | 87 ms | 1408 KB |
1_020.txt | AC | 81 ms | 1408 KB |