| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 20846 |
2017-02-26T07:22:48 Z |
sgc109 |
초음속철도 (OJUZ11_rail) |
C++11 |
|
1343 ms |
78836 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 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[200003];
ll dp[3610003];
ll lz[3610003];
ll pow(ll x, ll n){
if(n==0) return 1;
if(n%2) (x*pow(x,(n-1)/2))%MOD*pow(x,(n-1)/2)%MOD;
else pow(x,n/2)*pow(x,n/2)%MOD;
}
unordered_set<int> us;
ll query(int nl, int nr, int l, int r, int nd){
if(lz[nd]) (dp[nd]*=pow(2,lz[nd]))%=MOD,(nl!=nr?lz[2*nd]+=lz[nd],lz[2*nd+1]+=lz[nd]:0),lz[nd]=0;
if(l<=nl&&nr<=r) return dp[nd];
if(r<nl||nr<l) return 0;
return (query(nl,(nl+nr)/2,l,r,2*nd)+query((nl+nr)/2+1,nr,l,r,2*nd+1))%MOD;
} ll query(int l, int r){return query(0,E,l,r,1);}
void update(int nl, int nr, int l, int r, int nd){
if(lz[nd]) (dp[nd]*=pow(2,lz[nd]))%=MOD,(nl!=nr?lz[2*nd]+=lz[nd],lz[2*nd+1]+=lz[nd]:0),lz[nd]=0;
if(l<=nl&&nr<=r) {(dp[nd]*=2)%=MOD,(nl!=nr?lz[2*nd]++,lz[2*nd+1]++:0);return;}
if(r<nl||nr<l) return;
update(nl,(nl+nr)/2,l,r,2*nd),update((nl+nr)/2+1,nr,l,r,2*nd+1),dp[nd]=(dp[2*nd]+dp[2*nd+1])%MOD;
} void update(int l, int r){update(0,E,l,r,1);}
void pUpdate(int nl, int nr, int nd, int pos, ll val){
if(lz[nd]) (dp[nd]*=pow(2,lz[nd]))%=MOD,(nl!=nr?lz[2*nd]+=lz[nd],lz[2*nd+1]+=lz[nd]:0),lz[nd]=0;
if(nl==nr&&nl==pos) {dp[nd]=val;return;}
if(nr<pos||pos<nl) return;
pUpdate(nl,(nl+nr)/2,2*nd,pos,val),pUpdate((nl+nr)/2+1,nr,2*nd+1,pos,val),dp[nd]=(dp[2*nd]+dp[2*nd+1])%MOD;
} void pUpdate(int pos, ll val){pUpdate(0,E,1,pos,val);}
int main() {
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
pUpdate(0,1);
FOR(i,M){
pUpdate(ranges[i].r,(query(ranges[i].l,ranges[i].r)+query(ranges[i].r,ranges[i].r))%MOD);
update(ranges[i].r+1,E);
}
printf("%lld",query(E,E));
return 0;
}
Compilation message
rail.cpp: In function 'll pow(ll, ll)':
rail.cpp:54:47: warning: value computed is not used [-Wunused-value]
if(n%2) (x*pow(x,(n-1)/2))%MOD*pow(x,(n-1)/2)%MOD;
^
rail.cpp:55:28: warning: value computed is not used [-Wunused-value]
else pow(x,n/2)*pow(x,n/2)%MOD;
^
rail.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
rail.cpp: In function 'int main()':
rail.cpp:81:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
inp2(N,M);
^
rail.cpp:85:12: 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 |
0 ms |
60184 KB |
Output is correct |
| 2 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 3 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 4 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 5 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 6 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 7 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 8 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 9 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 10 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 11 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 12 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 13 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 14 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 15 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 16 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 17 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 18 |
Correct |
0 ms |
60184 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 2 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 3 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 4 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 5 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 6 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 7 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 8 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 9 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 10 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 11 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 12 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 13 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 14 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 15 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 16 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 17 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 18 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 19 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 20 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 21 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 22 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 23 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 24 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 25 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 26 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 27 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 28 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 29 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 30 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 31 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 32 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 33 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 34 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 35 |
Correct |
0 ms |
60184 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 2 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 3 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 4 |
Incorrect |
3 ms |
60320 KB |
Output isn't correct |
| 5 |
Incorrect |
263 ms |
62640 KB |
Output isn't correct |
| 6 |
Incorrect |
633 ms |
77780 KB |
Output isn't correct |
| 7 |
Incorrect |
559 ms |
77648 KB |
Output isn't correct |
| 8 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 9 |
Incorrect |
569 ms |
76856 KB |
Output isn't correct |
| 10 |
Incorrect |
629 ms |
77516 KB |
Output isn't correct |
| 11 |
Incorrect |
169 ms |
62112 KB |
Output isn't correct |
| 12 |
Incorrect |
659 ms |
77780 KB |
Output isn't correct |
| 13 |
Incorrect |
666 ms |
77516 KB |
Output isn't correct |
| 14 |
Incorrect |
86 ms |
60184 KB |
Output isn't correct |
| 15 |
Incorrect |
576 ms |
69544 KB |
Output isn't correct |
| 16 |
Incorrect |
86 ms |
60184 KB |
Output isn't correct |
| 17 |
Incorrect |
676 ms |
77780 KB |
Output isn't correct |
| 18 |
Incorrect |
703 ms |
77780 KB |
Output isn't correct |
| 19 |
Incorrect |
659 ms |
76196 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 2 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 3 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 4 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 5 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 6 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 7 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 8 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 9 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 10 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 11 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 12 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 13 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 14 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 15 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 16 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 17 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 18 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 19 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 20 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 21 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 22 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 23 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 24 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 25 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 26 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 27 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 28 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 29 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 30 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 31 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 32 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 33 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 34 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 35 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 36 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 37 |
Incorrect |
16 ms |
60704 KB |
Output isn't correct |
| 38 |
Incorrect |
9 ms |
60320 KB |
Output isn't correct |
| 39 |
Incorrect |
0 ms |
60184 KB |
Output isn't correct |
| 40 |
Incorrect |
6 ms |
60480 KB |
Output isn't correct |
| 41 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 42 |
Incorrect |
16 ms |
60704 KB |
Output isn't correct |
| 43 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 44 |
Incorrect |
13 ms |
60480 KB |
Output isn't correct |
| 45 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 46 |
Incorrect |
6 ms |
60480 KB |
Output isn't correct |
| 47 |
Incorrect |
13 ms |
60480 KB |
Output isn't correct |
| 48 |
Incorrect |
9 ms |
60480 KB |
Output isn't correct |
| 49 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 50 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 51 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 52 |
Incorrect |
3 ms |
60320 KB |
Output isn't correct |
| 53 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 54 |
Incorrect |
6 ms |
60320 KB |
Output isn't correct |
| 55 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 2 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 3 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 4 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 5 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 6 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 7 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 8 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 9 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 10 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 11 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 12 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 13 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 14 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 15 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 16 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 17 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 18 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 19 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 20 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 21 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 22 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 23 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 24 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 25 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 26 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 27 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 28 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 29 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 30 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 31 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 32 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 33 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 34 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 35 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 36 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 37 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 38 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 39 |
Incorrect |
3 ms |
60320 KB |
Output isn't correct |
| 40 |
Incorrect |
263 ms |
62640 KB |
Output isn't correct |
| 41 |
Incorrect |
633 ms |
77780 KB |
Output isn't correct |
| 42 |
Incorrect |
559 ms |
77648 KB |
Output isn't correct |
| 43 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 44 |
Incorrect |
569 ms |
76856 KB |
Output isn't correct |
| 45 |
Incorrect |
629 ms |
77516 KB |
Output isn't correct |
| 46 |
Incorrect |
169 ms |
62112 KB |
Output isn't correct |
| 47 |
Incorrect |
659 ms |
77780 KB |
Output isn't correct |
| 48 |
Incorrect |
666 ms |
77516 KB |
Output isn't correct |
| 49 |
Incorrect |
86 ms |
60184 KB |
Output isn't correct |
| 50 |
Incorrect |
576 ms |
69544 KB |
Output isn't correct |
| 51 |
Incorrect |
86 ms |
60184 KB |
Output isn't correct |
| 52 |
Incorrect |
676 ms |
77780 KB |
Output isn't correct |
| 53 |
Incorrect |
703 ms |
77780 KB |
Output isn't correct |
| 54 |
Incorrect |
659 ms |
76196 KB |
Output isn't correct |
| 55 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 56 |
Incorrect |
16 ms |
60704 KB |
Output isn't correct |
| 57 |
Incorrect |
9 ms |
60320 KB |
Output isn't correct |
| 58 |
Incorrect |
0 ms |
60184 KB |
Output isn't correct |
| 59 |
Incorrect |
6 ms |
60480 KB |
Output isn't correct |
| 60 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 61 |
Incorrect |
16 ms |
60704 KB |
Output isn't correct |
| 62 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 63 |
Incorrect |
13 ms |
60480 KB |
Output isn't correct |
| 64 |
Correct |
0 ms |
60184 KB |
Output is correct |
| 65 |
Incorrect |
6 ms |
60480 KB |
Output isn't correct |
| 66 |
Incorrect |
13 ms |
60480 KB |
Output isn't correct |
| 67 |
Incorrect |
9 ms |
60480 KB |
Output isn't correct |
| 68 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 69 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 70 |
Incorrect |
3 ms |
60184 KB |
Output isn't correct |
| 71 |
Incorrect |
3 ms |
60320 KB |
Output isn't correct |
| 72 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 73 |
Incorrect |
6 ms |
60320 KB |
Output isn't correct |
| 74 |
Incorrect |
19 ms |
60704 KB |
Output isn't correct |
| 75 |
Incorrect |
1336 ms |
78836 KB |
Output isn't correct |
| 76 |
Incorrect |
783 ms |
75328 KB |
Output isn't correct |
| 77 |
Incorrect |
409 ms |
60320 KB |
Output isn't correct |
| 78 |
Incorrect |
73 ms |
60184 KB |
Output isn't correct |
| 79 |
Incorrect |
756 ms |
64056 KB |
Output isn't correct |
| 80 |
Incorrect |
1243 ms |
78836 KB |
Output isn't correct |
| 81 |
Incorrect |
13 ms |
60480 KB |
Output isn't correct |
| 82 |
Incorrect |
1116 ms |
77384 KB |
Output isn't correct |
| 83 |
Correct |
66 ms |
60184 KB |
Output is correct |
| 84 |
Incorrect |
916 ms |
75668 KB |
Output isn't correct |
| 85 |
Incorrect |
856 ms |
69412 KB |
Output isn't correct |
| 86 |
Incorrect |
879 ms |
69544 KB |
Output isn't correct |
| 87 |
Incorrect |
166 ms |
60184 KB |
Output isn't correct |
| 88 |
Incorrect |
159 ms |
60184 KB |
Output isn't correct |
| 89 |
Incorrect |
1309 ms |
78836 KB |
Output isn't correct |
| 90 |
Incorrect |
1343 ms |
78836 KB |
Output isn't correct |
| 91 |
Incorrect |
1279 ms |
78836 KB |
Output isn't correct |
| 92 |
Incorrect |
1139 ms |
78440 KB |
Output isn't correct |
| 93 |
Incorrect |
809 ms |
69412 KB |
Output isn't correct |
| 94 |
Incorrect |
1266 ms |
78836 KB |
Output isn't correct |
| 95 |
Incorrect |
1319 ms |
78836 KB |
Output isn't correct |
