Submission #1160385
Source Code Expand
#include <iostream> #include <vector> using namespace std; typedef long long lli; #define MOD 1000000007 lli n,c; vector<lli> a; vector<lli> b; lli dp[401][401]; lli dp2[401][401]; int main(int argc, char const *argv[]) { for(lli i = 0;i <= 400;i++) dp2[i][0] = 1; for(lli i = 0;i <= 400;i++) for(lli j = 0;j < 400;j++) dp2[i][j+1] = (dp2[i][j]*i)%MOD; for(lli i = 0;i < 400;i++) for(lli j = 0;j <= 400;j++) dp2[i+1][j] += dp2[i][j],dp2[i+1][j] %= MOD; cin >> n >> c; a = vector<lli> (n); b = vector<lli> (n); for(lli i = 0;i < n;i++) cin >> a[i]; for(lli i = 0;i < n;i++) cin >> b[i]; dp[0][0] = 1; for(lli i = 0;i < n;i++){ for(lli j = 0;j <= c;j++){ for(lli k = j,t = 0;k <= c;k++,t++){ dp[i+1][k] += (dp[i][j]*((dp2[b[i]][t]-dp2[a[i]-1][t]+MOD)%MOD))%MOD;dp[i+1][k] %= MOD; } } } cout << dp[n][c] << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | E - Children and Candies |
User | deoxy |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 960 Byte |
Status | AC |
Exec Time | 250 ms |
Memory | 2816 KB |
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | 400 / 400 | ||||||
Status |
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Set Name | Test Cases |
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Sample | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 0_004.txt |
Subtask | 0_001, 0_003, 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 |
All | 0_000.txt, 0_001.txt, 0_002.txt, 0_003.txt, 0_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, 2_017.txt, 2_018.txt, 2_019.txt, 2_020.txt, 2_021.txt, 2_022.txt, 2_023.txt, 2_024.txt, 2_025.txt, 2_026.txt, 2_027.txt, 2_028.txt, 2_029.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_000.txt | AC | 3 ms | 1536 KB |
0_001.txt | AC | 3 ms | 1536 KB |
0_002.txt | AC | 3 ms | 1536 KB |
0_003.txt | AC | 3 ms | 1536 KB |
0_004.txt | AC | 3 ms | 1536 KB |
1_005.txt | AC | 3 ms | 1536 KB |
1_006.txt | AC | 3 ms | 1536 KB |
1_007.txt | AC | 3 ms | 1536 KB |
1_008.txt | AC | 3 ms | 1536 KB |
1_009.txt | AC | 3 ms | 1536 KB |
1_010.txt | AC | 3 ms | 1536 KB |
1_011.txt | AC | 4 ms | 2816 KB |
1_012.txt | AC | 4 ms | 2816 KB |
1_013.txt | AC | 4 ms | 2816 KB |
1_014.txt | AC | 245 ms | 2816 KB |
1_015.txt | AC | 250 ms | 2816 KB |
1_016.txt | AC | 245 ms | 2816 KB |
2_017.txt | AC | 3 ms | 1536 KB |
2_018.txt | AC | 3 ms | 1536 KB |
2_019.txt | AC | 3 ms | 1536 KB |
2_020.txt | AC | 3 ms | 1536 KB |
2_021.txt | AC | 4 ms | 2816 KB |
2_022.txt | AC | 4 ms | 2816 KB |
2_023.txt | AC | 246 ms | 2816 KB |
2_024.txt | AC | 245 ms | 2816 KB |
2_025.txt | AC | 42 ms | 2816 KB |
2_026.txt | AC | 4 ms | 2560 KB |
2_027.txt | AC | 195 ms | 2688 KB |
2_028.txt | AC | 6 ms | 1920 KB |
2_029.txt | AC | 4 ms | 1664 KB |