Submission #65192
Source Code Expand
#include<cstdio> #include<vector> #include<algorithm> #define rep(i,n) for(int i=0;i<(n);i++) using namespace std; const int M=1000000007; struct interval{ int a,b; bool operator<(const interval &I)const{ return a<I.a || a==I.a && b<I.b; } }; int main(){ int n,m; scanf("%d%d",&n,&m); static interval I[100000]; rep(i,m) scanf("%d%d",&I[i].a,&I[i].b); vector<int> X; X.push_back(0); X.push_back(n); rep(i,m){ X.push_back(I[i].a); X.push_back(I[i].b); } sort(X.begin(),X.end()); X.erase(unique(X.begin(),X.end()),X.end()); sort(I,I+m); // dp[j][k] := (0, X[j]] を二本以上で覆い, (X[j], X[k]] を一本で覆い, (X[k], n] を覆っていないような電車の選び方の数 static int dp[402][402]; dp[0][0]=1; rep(i,m){ int t=lower_bound(X.begin(),X.end(),I[i].b)-X.begin(); // rep(j,X.size()) for(int k=j;k<X.size();k++) { for(int j=X.size()-1;j>=0;j--) for(int k=X.size()-1;k>=j;k--) { // ( 0, x2] は二本以上で覆った // (x2, x1] は一本で覆った // (x1, n] はまだ覆ってない int x2=X[j],x1=X[k]; // 電車 i を使う if(I[i].a<=x2+1){ if(x1<I[i].b){ dp[k][t]+=dp[j][k]; dp[k][t]%=M; } else if(x2<I[i].b){ dp[t][k]+=dp[j][k]; dp[t][k]%=M; } else{ // I[i].b<=x2 dp[j][k]+=dp[j][k]; dp[j][k]%=M; } } } } printf("%d\n",dp[X.size()-1][X.size()-1]); return 0; }
Submission Info
Submission Time | |
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Task | H - ダイヤグラム |
User | fura2 |
Language | C++ (G++ 4.6.4) |
Score | 100 |
Code Size | 1478 Byte |
Status | AC |
Exec Time | 76 ms |
Memory | 1428 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:17:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] ./Main.cpp:19:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
Judge Result
Set Name | small | medium | large | ||||||
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Score / Max Score | 10 / 10 | 40 / 40 | 50 / 50 | ||||||
Status |
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Set Name | Test Cases |
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small | small/case_000.txt, small/case_001.txt, small/case_002.txt, small/case_003.txt, small/case_004.txt, small/case_005.txt, small/case_006.txt, small/case_007.txt, small/case_008.txt, small/case_009.txt, small/case_010.txt, small/case_011.txt, small/case_012.txt, small/case_013.txt, small/case_014.txt, small/case_015.txt, small/case_016.txt, small/case_017.txt, small/case_018.txt, small/case_019.txt, small/case_020.txt, small/case_021.txt, small/case_022.txt, small/case_023.txt |
medium | medium/case_000.txt, medium/case_001.txt, medium/case_002.txt, medium/case_003.txt, medium/case_004.txt, medium/case_005.txt, medium/case_006.txt, medium/case_007.txt, medium/case_008.txt, medium/case_009.txt, medium/case_010.txt, medium/case_011.txt, medium/case_012.txt, medium/case_013.txt, medium/case_014.txt, medium/case_015.txt, medium/case_016.txt, medium/case_017.txt, medium/case_018.txt, medium/case_019.txt, medium/case_020.txt, medium/case_021.txt, medium/case_022.txt, medium/case_023.txt, medium/medium_case_000.txt, medium/medium_case_001.txt, medium/medium_case_002.txt, medium/medium_case_003.txt, medium/medium_case_004.txt, medium/medium_case_005.txt, medium/medium_case_006.txt, medium/medium_case_007.txt, medium/medium_case_008.txt, medium/medium_case_009.txt, medium/medium_case_010.txt, medium/medium_case_011.txt, medium/medium_case_012.txt, medium/medium_case_013.txt, medium/medium_case_014.txt, medium/medium_case_015.txt, medium/medium_case_016.txt, medium/medium_case_017.txt, medium/medium_case_018.txt, medium/medium_case_019.txt, medium/medium_case_020.txt |
large | large/case_000.txt, large/case_001.txt, large/case_002.txt, large/case_003.txt, large/case_004.txt, large/case_005.txt, large/case_006.txt, large/case_007.txt, large/case_008.txt, large/case_009.txt, large/case_010.txt, large/case_011.txt, large/case_012.txt, large/case_013.txt, large/case_014.txt, large/case_015.txt, large/case_016.txt, large/case_017.txt, large/case_018.txt, large/case_019.txt, large/case_020.txt, large/case_021.txt, large/case_022.txt, large/case_023.txt, large/large_case_000.txt, large/large_case_001.txt, large/large_case_002.txt, large/large_case_003.txt, large/large_case_004.txt, large/large_case_005.txt, large/large_case_006.txt, large/large_case_007.txt, large/large_case_008.txt, large/large_case_009.txt, large/large_case_010.txt, large/large_case_011.txt, large/large_case_012.txt, large/large_case_013.txt, large/large_case_014.txt, large/large_case_015.txt, large/large_case_016.txt, large/large_case_017.txt, large/large_case_018.txt, large/large_case_019.txt, large/large_case_020.txt, large/large_case_021.txt, large/large_case_022.txt, large/large_case_023.txt, large/large_case_024.txt, large/large_case_025.txt, large/large_case_026.txt, large/large_case_027.txt, large/large_case_028.txt, large/large_case_029.txt, large/medium_case_000.txt, large/medium_case_001.txt, large/medium_case_002.txt, large/medium_case_003.txt, large/medium_case_004.txt, large/medium_case_005.txt, large/medium_case_006.txt, large/medium_case_007.txt, large/medium_case_008.txt, large/medium_case_009.txt, large/medium_case_010.txt, large/medium_case_011.txt, large/medium_case_012.txt, large/medium_case_013.txt, large/medium_case_014.txt, large/medium_case_015.txt, large/medium_case_016.txt, large/medium_case_017.txt, large/medium_case_018.txt, large/medium_case_019.txt, large/medium_case_020.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
large/case_000.txt | AC | 19 ms | 780 KB |
large/case_001.txt | AC | 19 ms | 776 KB |
large/case_002.txt | AC | 20 ms | 780 KB |
large/case_003.txt | AC | 19 ms | 784 KB |
large/case_004.txt | AC | 20 ms | 696 KB |
large/case_005.txt | AC | 20 ms | 776 KB |
large/case_006.txt | AC | 19 ms | 784 KB |
large/case_007.txt | AC | 20 ms | 696 KB |
large/case_008.txt | AC | 20 ms | 780 KB |
large/case_009.txt | AC | 20 ms | 784 KB |
large/case_010.txt | AC | 19 ms | 780 KB |
large/case_011.txt | AC | 18 ms | 784 KB |
large/case_012.txt | AC | 18 ms | 776 KB |
large/case_013.txt | AC | 20 ms | 764 KB |
large/case_014.txt | AC | 20 ms | 788 KB |
large/case_015.txt | AC | 20 ms | 780 KB |
large/case_016.txt | AC | 20 ms | 696 KB |
large/case_017.txt | AC | 20 ms | 784 KB |
large/case_018.txt | AC | 20 ms | 704 KB |
large/case_019.txt | AC | 20 ms | 788 KB |
large/case_020.txt | AC | 20 ms | 696 KB |
large/case_021.txt | AC | 20 ms | 788 KB |
large/case_022.txt | AC | 20 ms | 784 KB |
large/case_023.txt | AC | 20 ms | 780 KB |
large/large_case_000.txt | AC | 74 ms | 1296 KB |
large/large_case_001.txt | AC | 73 ms | 1424 KB |
large/large_case_002.txt | AC | 71 ms | 1336 KB |
large/large_case_003.txt | AC | 71 ms | 1340 KB |
large/large_case_004.txt | AC | 76 ms | 1288 KB |
large/large_case_005.txt | AC | 74 ms | 1308 KB |
large/large_case_006.txt | AC | 75 ms | 1328 KB |
large/large_case_007.txt | AC | 72 ms | 1340 KB |
large/large_case_008.txt | AC | 71 ms | 1420 KB |
large/large_case_009.txt | AC | 72 ms | 1328 KB |
large/large_case_010.txt | AC | 32 ms | 956 KB |
large/large_case_011.txt | AC | 32 ms | 1036 KB |
large/large_case_012.txt | AC | 32 ms | 1048 KB |
large/large_case_013.txt | AC | 31 ms | 1048 KB |
large/large_case_014.txt | AC | 34 ms | 900 KB |
large/large_case_015.txt | AC | 32 ms | 1044 KB |
large/large_case_016.txt | AC | 32 ms | 1036 KB |
large/large_case_017.txt | AC | 30 ms | 1036 KB |
large/large_case_018.txt | AC | 30 ms | 1032 KB |
large/large_case_019.txt | AC | 31 ms | 1040 KB |
large/large_case_020.txt | AC | 73 ms | 1336 KB |
large/large_case_021.txt | AC | 75 ms | 1272 KB |
large/large_case_022.txt | AC | 73 ms | 1420 KB |
large/large_case_023.txt | AC | 73 ms | 1336 KB |
large/large_case_024.txt | AC | 72 ms | 1428 KB |
large/large_case_025.txt | AC | 73 ms | 1332 KB |
large/large_case_026.txt | AC | 73 ms | 1340 KB |
large/large_case_027.txt | AC | 73 ms | 1292 KB |
large/large_case_028.txt | AC | 72 ms | 1324 KB |
large/large_case_029.txt | AC | 72 ms | 1344 KB |
large/medium_case_000.txt | AC | 21 ms | 792 KB |
large/medium_case_001.txt | AC | 21 ms | 784 KB |
large/medium_case_002.txt | AC | 20 ms | 796 KB |
large/medium_case_003.txt | AC | 20 ms | 792 KB |
large/medium_case_004.txt | AC | 20 ms | 788 KB |
large/medium_case_005.txt | AC | 20 ms | 780 KB |
large/medium_case_006.txt | AC | 20 ms | 780 KB |
large/medium_case_007.txt | AC | 20 ms | 780 KB |
large/medium_case_008.txt | AC | 20 ms | 760 KB |
large/medium_case_009.txt | AC | 21 ms | 672 KB |
large/medium_case_010.txt | AC | 20 ms | 672 KB |
large/medium_case_011.txt | AC | 20 ms | 780 KB |
large/medium_case_012.txt | AC | 20 ms | 792 KB |
large/medium_case_013.txt | AC | 20 ms | 664 KB |
large/medium_case_014.txt | AC | 20 ms | 780 KB |
large/medium_case_015.txt | AC | 21 ms | 780 KB |
large/medium_case_016.txt | AC | 20 ms | 684 KB |
large/medium_case_017.txt | AC | 22 ms | 792 KB |
large/medium_case_018.txt | AC | 23 ms | 676 KB |
large/medium_case_019.txt | AC | 19 ms | 780 KB |
large/medium_case_020.txt | AC | 20 ms | 632 KB |
medium/case_000.txt | AC | 20 ms | 792 KB |
medium/case_001.txt | AC | 20 ms | 792 KB |
medium/case_002.txt | AC | 20 ms | 792 KB |
medium/case_003.txt | AC | 20 ms | 704 KB |
medium/case_004.txt | AC | 19 ms | 784 KB |
medium/case_005.txt | AC | 19 ms | 776 KB |
medium/case_006.txt | AC | 20 ms | 776 KB |
medium/case_007.txt | AC | 20 ms | 784 KB |
medium/case_008.txt | AC | 20 ms | 784 KB |
medium/case_009.txt | AC | 20 ms | 700 KB |
medium/case_010.txt | AC | 20 ms | 632 KB |
medium/case_011.txt | AC | 20 ms | 636 KB |
medium/case_012.txt | AC | 19 ms | 688 KB |
medium/case_013.txt | AC | 20 ms | 784 KB |
medium/case_014.txt | AC | 20 ms | 792 KB |
medium/case_015.txt | AC | 20 ms | 776 KB |
medium/case_016.txt | AC | 20 ms | 812 KB |
medium/case_017.txt | AC | 20 ms | 796 KB |
medium/case_018.txt | AC | 18 ms | 780 KB |
medium/case_019.txt | AC | 20 ms | 788 KB |
medium/case_020.txt | AC | 21 ms | 784 KB |
medium/case_021.txt | AC | 20 ms | 784 KB |
medium/case_022.txt | AC | 20 ms | 776 KB |
medium/case_023.txt | AC | 20 ms | 792 KB |
medium/medium_case_000.txt | AC | 21 ms | 788 KB |
medium/medium_case_001.txt | AC | 20 ms | 788 KB |
medium/medium_case_002.txt | AC | 19 ms | 772 KB |
medium/medium_case_003.txt | AC | 20 ms | 692 KB |
medium/medium_case_004.txt | AC | 20 ms | 688 KB |
medium/medium_case_005.txt | AC | 20 ms | 784 KB |
medium/medium_case_006.txt | AC | 20 ms | 792 KB |
medium/medium_case_007.txt | AC | 22 ms | 784 KB |
medium/medium_case_008.txt | AC | 20 ms | 764 KB |
medium/medium_case_009.txt | AC | 20 ms | 788 KB |
medium/medium_case_010.txt | AC | 20 ms | 784 KB |
medium/medium_case_011.txt | AC | 20 ms | 756 KB |
medium/medium_case_012.txt | AC | 20 ms | 788 KB |
medium/medium_case_013.txt | AC | 20 ms | 764 KB |
medium/medium_case_014.txt | AC | 20 ms | 792 KB |
medium/medium_case_015.txt | AC | 22 ms | 660 KB |
medium/medium_case_016.txt | AC | 20 ms | 780 KB |
medium/medium_case_017.txt | AC | 20 ms | 788 KB |
medium/medium_case_018.txt | AC | 22 ms | 768 KB |
medium/medium_case_019.txt | AC | 20 ms | 784 KB |
medium/medium_case_020.txt | AC | 20 ms | 792 KB |
small/case_000.txt | AC | 20 ms | 664 KB |
small/case_001.txt | AC | 20 ms | 784 KB |
small/case_002.txt | AC | 20 ms | 632 KB |
small/case_003.txt | AC | 20 ms | 784 KB |
small/case_004.txt | AC | 20 ms | 788 KB |
small/case_005.txt | AC | 21 ms | 784 KB |
small/case_006.txt | AC | 20 ms | 632 KB |
small/case_007.txt | AC | 20 ms | 788 KB |
small/case_008.txt | AC | 20 ms | 652 KB |
small/case_009.txt | AC | 20 ms | 652 KB |
small/case_010.txt | AC | 20 ms | 780 KB |
small/case_011.txt | AC | 20 ms | 788 KB |
small/case_012.txt | AC | 20 ms | 792 KB |
small/case_013.txt | AC | 20 ms | 768 KB |
small/case_014.txt | AC | 22 ms | 644 KB |
small/case_015.txt | AC | 19 ms | 792 KB |
small/case_016.txt | AC | 20 ms | 772 KB |
small/case_017.txt | AC | 20 ms | 780 KB |
small/case_018.txt | AC | 19 ms | 780 KB |
small/case_019.txt | AC | 22 ms | 668 KB |
small/case_020.txt | AC | 21 ms | 792 KB |
small/case_021.txt | AC | 20 ms | 776 KB |
small/case_022.txt | AC | 18 ms | 788 KB |
small/case_023.txt | AC | 20 ms | 688 KB |