| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 20471 |
2017-02-12T01:24:50 Z |
sgc109(#57, sgc109) |
초음속철도 (OJUZ11_rail) |
C++11 |
|
506 ms |
393696 KB |
// #include <bits/stdc++.h>
#include <unordered_set>
// #include <unordered_map>
#include <vector>
#include <cstdio>
#include <iostream>
#include <cstring>
#include <queue>
#include <set>
#include <map>
#include <cmath>
#include <algorithm>
#include <utility>
#include <string>
#define REP(i,a,b) for(int i=a;i<=b;++i)
#define FOR(i,n) for(int i=0;i<n;++i)
#define pb push_back
#define all(v) (v).begin(),(v).end()
#define sz(v) ((int)(v).size())
#define inp1(a) scanf("%d",&a)
#define inp2(a,b) scanf("%d%d",&a,&b)
#define inp3(a,b,c) scanf("%d%d%d",&a,&b,&c)
#define inp4(a,b,c,d) scanf("%d%d%d%d",&a,&b,&c,&d)
#define inp5(a,b,c,d,e) scanf("%d%d%d%d%d",&a,&b,&c,&d,&e)z
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int,int> pii;
typedef vector<pii> vii;
typedef vector<pll> vll;
typedef vector<vector<int> > vvi;
typedef pair<int,pair<int,int> > piii;
typedef vector<piii> viii;
const double EPSILON = 1e-9;
const double PI = acos(-1);
const int MOD = 1000000007;
const int INF = 0x3c3c3c3c;
const long long INFL = 0x3c3c3c3c3c3c3c3c;
const int MAX_N = 102;
struct Range{
int l,r;
bool operator<(Range& rhs){
if(l==rhs.l) return r<rhs.r;
return l<rhs.l;
}
};
int N,M,a,b,E;
Range ranges[5003];
ll dp[5003][10003];
unordered_set<int> us;
ll solve(int pos, int last){
if(pos==M) return last==E;
if(ranges[pos].l!=0&&last<ranges[pos].l) return 0;
ll& cache = dp[pos][last+1];
if(cache!=-1) return cache;
return cache = (solve(pos+1,max(last,ranges[pos].r))+solve(pos+1,last))%MOD;
}
int main() {
memset(dp,-1,sizeof(dp));
vi sorted;
inp2(N,M);
us.insert(1),sorted.pb(1);
us.insert(N),sorted.pb(N);
FOR(i,M){
inp2(a,b);
ranges[i]=Range{a,b};
if(!us.count(a)) us.insert(a),sorted.pb(a);
if(!us.count(b)) us.insert(b),sorted.pb(b);
}
sort(all(sorted));
E=sz(sorted)-1;
FOR(i,M) {
ranges[i].l=lower_bound(all(sorted),ranges[i].l)-sorted.begin();
ranges[i].r=lower_bound(all(sorted),ranges[i].r)-sorted.begin();
}
sort(ranges,ranges+M);
// 좌표압축 + 정렬까지 완료
printf("%lld", solve(0,-1));
return 0;
}
Compilation message
rail.cpp: In function 'int main()':
rail.cpp:64:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inp2(N,M);
^
rail.cpp:68:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inp2(a,b);
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 2 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 3 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 4 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 5 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 6 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 7 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 8 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 9 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 10 |
Correct |
13 ms |
393044 KB |
Output is correct |
| 11 |
Correct |
6 ms |
393044 KB |
Output is correct |
| 12 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 13 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 14 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 15 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 16 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 17 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 18 |
Correct |
16 ms |
393044 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 2 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 3 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 4 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 5 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 6 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 7 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 8 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 9 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 10 |
Correct |
13 ms |
393044 KB |
Output is correct |
| 11 |
Correct |
6 ms |
393044 KB |
Output is correct |
| 12 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 13 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 14 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 15 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 16 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 17 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 18 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 19 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 20 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 21 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 22 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 23 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 24 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 25 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 26 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 27 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 28 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 29 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 30 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 31 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 32 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 33 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 34 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 35 |
Correct |
26 ms |
393044 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
393044 KB |
Output is correct |
| 2 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 3 |
Correct |
49 ms |
393044 KB |
Output is correct |
| 4 |
Correct |
33 ms |
393288 KB |
Output is correct |
| 5 |
Runtime error |
59 ms |
393340 KB |
Execution killed because of forbidden syscall futex (202) |
| 6 |
Runtime error |
23 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 7 |
Incorrect |
39 ms |
393612 KB |
Output isn't correct |
| 8 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 9 |
Runtime error |
26 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 10 |
Runtime error |
39 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 11 |
Runtime error |
29 ms |
393340 KB |
Execution killed because of forbidden syscall futex (202) |
| 12 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 13 |
Runtime error |
29 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 14 |
Runtime error |
9 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 15 |
Runtime error |
33 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 16 |
Runtime error |
23 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 17 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 18 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 19 |
Runtime error |
29 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 2 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 3 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 4 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 5 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 6 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 7 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 8 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 9 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 10 |
Correct |
13 ms |
393044 KB |
Output is correct |
| 11 |
Correct |
6 ms |
393044 KB |
Output is correct |
| 12 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 13 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 14 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 15 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 16 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 17 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 18 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 19 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 20 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 21 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 22 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 23 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 24 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 25 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 26 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 27 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 28 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 29 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 30 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 31 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 32 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 33 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 34 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 35 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 36 |
Correct |
376 ms |
393672 KB |
Output is correct |
| 37 |
Correct |
296 ms |
393632 KB |
Output is correct |
| 38 |
Correct |
213 ms |
393244 KB |
Output is correct |
| 39 |
Correct |
33 ms |
393148 KB |
Output is correct |
| 40 |
Correct |
29 ms |
393452 KB |
Output is correct |
| 41 |
Correct |
59 ms |
393564 KB |
Output is correct |
| 42 |
Correct |
199 ms |
393676 KB |
Output is correct |
| 43 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 44 |
Correct |
506 ms |
393448 KB |
Output is correct |
| 45 |
Correct |
26 ms |
393156 KB |
Output is correct |
| 46 |
Correct |
363 ms |
393444 KB |
Output is correct |
| 47 |
Correct |
273 ms |
393444 KB |
Output is correct |
| 48 |
Correct |
239 ms |
393448 KB |
Output is correct |
| 49 |
Correct |
33 ms |
393152 KB |
Output is correct |
| 50 |
Correct |
9 ms |
393156 KB |
Output is correct |
| 51 |
Correct |
29 ms |
393152 KB |
Output is correct |
| 52 |
Correct |
43 ms |
393180 KB |
Output is correct |
| 53 |
Correct |
39 ms |
393564 KB |
Output is correct |
| 54 |
Correct |
116 ms |
393200 KB |
Output is correct |
| 55 |
Correct |
36 ms |
393564 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 2 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 3 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 4 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 5 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 6 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 7 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 8 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 9 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 10 |
Correct |
13 ms |
393044 KB |
Output is correct |
| 11 |
Correct |
6 ms |
393044 KB |
Output is correct |
| 12 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 13 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 14 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 15 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 16 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 17 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 18 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 19 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 20 |
Correct |
46 ms |
393044 KB |
Output is correct |
| 21 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 22 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 23 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 24 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 25 |
Correct |
39 ms |
393044 KB |
Output is correct |
| 26 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 27 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 28 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 29 |
Correct |
33 ms |
393044 KB |
Output is correct |
| 30 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 31 |
Correct |
16 ms |
393044 KB |
Output is correct |
| 32 |
Correct |
19 ms |
393044 KB |
Output is correct |
| 33 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 34 |
Correct |
29 ms |
393044 KB |
Output is correct |
| 35 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 36 |
Correct |
43 ms |
393044 KB |
Output is correct |
| 37 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 38 |
Correct |
49 ms |
393044 KB |
Output is correct |
| 39 |
Correct |
33 ms |
393288 KB |
Output is correct |
| 40 |
Runtime error |
59 ms |
393340 KB |
Execution killed because of forbidden syscall futex (202) |
| 41 |
Runtime error |
23 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 42 |
Incorrect |
39 ms |
393612 KB |
Output isn't correct |
| 43 |
Correct |
36 ms |
393044 KB |
Output is correct |
| 44 |
Runtime error |
26 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 45 |
Runtime error |
39 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 46 |
Runtime error |
29 ms |
393340 KB |
Execution killed because of forbidden syscall futex (202) |
| 47 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 48 |
Runtime error |
29 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 49 |
Runtime error |
9 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 50 |
Runtime error |
33 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 51 |
Runtime error |
23 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 52 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 53 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 54 |
Runtime error |
29 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 55 |
Correct |
376 ms |
393672 KB |
Output is correct |
| 56 |
Correct |
296 ms |
393632 KB |
Output is correct |
| 57 |
Correct |
213 ms |
393244 KB |
Output is correct |
| 58 |
Correct |
33 ms |
393148 KB |
Output is correct |
| 59 |
Correct |
29 ms |
393452 KB |
Output is correct |
| 60 |
Correct |
59 ms |
393564 KB |
Output is correct |
| 61 |
Correct |
199 ms |
393676 KB |
Output is correct |
| 62 |
Correct |
26 ms |
393044 KB |
Output is correct |
| 63 |
Correct |
506 ms |
393448 KB |
Output is correct |
| 64 |
Correct |
26 ms |
393156 KB |
Output is correct |
| 65 |
Correct |
363 ms |
393444 KB |
Output is correct |
| 66 |
Correct |
273 ms |
393444 KB |
Output is correct |
| 67 |
Correct |
239 ms |
393448 KB |
Output is correct |
| 68 |
Correct |
33 ms |
393152 KB |
Output is correct |
| 69 |
Correct |
9 ms |
393156 KB |
Output is correct |
| 70 |
Correct |
29 ms |
393152 KB |
Output is correct |
| 71 |
Correct |
43 ms |
393180 KB |
Output is correct |
| 72 |
Correct |
39 ms |
393564 KB |
Output is correct |
| 73 |
Correct |
116 ms |
393200 KB |
Output is correct |
| 74 |
Correct |
36 ms |
393564 KB |
Output is correct |
| 75 |
Runtime error |
39 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 76 |
Runtime error |
23 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 77 |
Incorrect |
53 ms |
393180 KB |
Output isn't correct |
| 78 |
Incorrect |
33 ms |
393044 KB |
Output isn't correct |
| 79 |
Runtime error |
29 ms |
393564 KB |
Execution killed because of forbidden syscall futex (202) |
| 80 |
Runtime error |
36 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 81 |
Correct |
336 ms |
393448 KB |
Output is correct |
| 82 |
Runtime error |
23 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 83 |
Runtime error |
33 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 84 |
Runtime error |
13 ms |
393564 KB |
Execution killed because of forbidden syscall futex (202) |
| 85 |
Runtime error |
29 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 86 |
Runtime error |
23 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 87 |
Runtime error |
29 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 88 |
Runtime error |
46 ms |
393044 KB |
Execution killed because of forbidden syscall futex (202) |
| 89 |
Runtime error |
33 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 90 |
Runtime error |
46 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 91 |
Runtime error |
26 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 92 |
Runtime error |
26 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 93 |
Runtime error |
13 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 94 |
Runtime error |
19 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
| 95 |
Runtime error |
33 ms |
393696 KB |
Execution killed because of forbidden syscall futex (202) |
