| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 20663 |
2017-02-13T11:46:10 Z |
우리OJ(#80, cki86201) |
초음속철도 (OJUZ11_rail) |
C++14 |
|
709 ms |
21532 KB |
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <queue>
#include <map>
#include <set>
#include <string>
#include <algorithm>
#include <iostream>
#include <functional>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <bitset>
using namespace std;
typedef pair<int, int> Pi;
typedef long long ll;
#define pii Pi
#define pll PL
#define Fi first
#define Se second
#define pb(x) push_back(x)
#define sz(x) ((int)(x).size())
#define rep(i, n) for(int i=0;i<n;i++)
#define all(x) (x).begin(), (x).end()
typedef tuple<int, int, int> t3;
typedef pair<ll, ll> PL;
int n, m;
int xs[400040], xz;
Pi p[200020];
const int MOD = 1e9 + 7;
struct node{
node(){sum = 0, C = 1;}
ll sum, C;
}T[1<<20];
void add(int rt, int l, int r, int x, ll v){
if(l == r){
T[rt].sum = (T[rt].sum + v) % MOD;
return;
}
if(T[rt].C != 1){
T[rt<<1].C = (T[rt<<1].C * T[rt].C) % MOD;
T[rt<<1|1].C = (T[rt<<1|1].C * T[rt].C) % MOD;
T[rt<<1].sum = (T[rt<<1].sum * T[rt].C) % MOD;
T[rt<<1|1].sum = (T[rt<<1|1].sum * T[rt].C) % MOD;
T[rt].C = 1;
}
int m = (l + r) >> 1;
if(x <= m)add(rt<<1, l, m, x, v);
else add(rt<<1|1, m+1, r, x, v);
T[rt].sum = (T[rt<<1].sum + T[rt<<1|1].sum) % MOD;
}
ll get_sum(int rt, int l,int r, int s, int d){
if(s <= l && r <= d){
return T[rt].sum;
}
if(T[rt].C != 1){
T[rt<<1].C = (T[rt<<1].C * T[rt].C) % MOD;
T[rt<<1|1].C = (T[rt<<1|1].C * T[rt].C) % MOD;
T[rt<<1].sum = (T[rt<<1].sum * T[rt].C) % MOD;
T[rt<<1|1].sum = (T[rt<<1|1].sum * T[rt].C) % MOD;
T[rt].C = 1;
}
int m = (l + r) >> 1;
ll res = 0;
if(s <= m)res += get_sum(rt<<1, l, m, s, d);
if(m < d)res += get_sum(rt<<1|1, m+1, r, s, d);
return res % MOD;
}
void mul2(int rt, int l, int r, int s, int d){
if(s <= l && r <= d){
T[rt].sum = (T[rt].sum + T[rt].sum) % MOD;
T[rt].C = (T[rt].C + T[rt].C) % MOD;
return;
}
if(T[rt].C != 1){
T[rt<<1].C = (T[rt<<1].C * T[rt].C) % MOD;
T[rt<<1|1].C = (T[rt<<1|1].C * T[rt].C) % MOD;
T[rt<<1].sum = (T[rt<<1].sum * T[rt].C) % MOD;
T[rt<<1|1].sum = (T[rt<<1|1].sum * T[rt].C) % MOD;
T[rt].C = 1;
}
int m = (l + r) >> 1;
if(s <= m)mul2(rt<<1, l, m, s, d);
if(m < d)mul2(rt<<1|1, m+1, r, s, d);
T[rt].sum = (T[rt<<1].sum + T[rt<<1|1].sum) % MOD;
}
void solve(){
scanf("%d%d", &n, &m);
for(int i=1;i<=m;i++){
int s, e;
scanf("%d%d", &s, &e);
p[i] = Pi(s, e);
xs[xz++] = s, xs[xz++] = e;
}
xs[xz++] = 1; xs[xz++] = n;
sort(xs, xs + xz);
xz = (int)(unique(xs, xs + xz) - xs);
for(int i=1;i<=m;i++){
p[i].Fi = (int)(lower_bound(xs, xs + xz, p[i].Fi) - xs) + 1;
p[i].Se = (int)(lower_bound(xs, xs + xz, p[i].Se) - xs) + 1;
}
add(1, 1, xz, 1, 1);
for(int i=1;i<=m;i++){
int l = p[i].Fi, r = p[i].Se;
if(l != 1)mul2(1, 1, xz, 1, l-1);
if(r != xz)mul2(1, 1, xz, r+1, xz);
ll s = get_sum(1, 1, xz, l, r);
add(1, 1, xz, r, s);
}
printf("%lld\n", get_sum(1, 1, xz, xz, xz));
}
int main(){
int Tc = 1; //scanf("%d", &Tc);
for(int tc=1;tc<=Tc;tc++){
//printf("Case #%d: ", tc);
solve();
}
return 0;
}
Compilation message
rail.cpp: In function 'void solve()':
rail.cpp:100:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &m);
^
rail.cpp:103:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &s, &e);
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 5 |
Correct |
9 ms |
21532 KB |
Output is correct |
| 6 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 7 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 10 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 11 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 12 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 13 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 14 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 15 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 17 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 18 |
Correct |
3 ms |
21532 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 5 |
Correct |
9 ms |
21532 KB |
Output is correct |
| 6 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 7 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 10 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 11 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 12 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 13 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 14 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 15 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 17 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 18 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 19 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 20 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 21 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 22 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 23 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 24 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 25 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 26 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 27 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 28 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 29 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 30 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 31 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 32 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 33 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 34 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 35 |
Correct |
0 ms |
21532 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 2 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 3 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 4 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 5 |
Incorrect |
296 ms |
21532 KB |
Output isn't correct |
| 6 |
Correct |
533 ms |
21532 KB |
Output is correct |
| 7 |
Correct |
566 ms |
21532 KB |
Output is correct |
| 8 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 9 |
Correct |
516 ms |
21532 KB |
Output is correct |
| 10 |
Correct |
533 ms |
21532 KB |
Output is correct |
| 11 |
Correct |
163 ms |
21532 KB |
Output is correct |
| 12 |
Correct |
563 ms |
21532 KB |
Output is correct |
| 13 |
Correct |
536 ms |
21532 KB |
Output is correct |
| 14 |
Correct |
73 ms |
21532 KB |
Output is correct |
| 15 |
Incorrect |
513 ms |
21532 KB |
Output isn't correct |
| 16 |
Correct |
76 ms |
21532 KB |
Output is correct |
| 17 |
Correct |
566 ms |
21532 KB |
Output is correct |
| 18 |
Correct |
576 ms |
21532 KB |
Output is correct |
| 19 |
Correct |
579 ms |
21532 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 5 |
Correct |
9 ms |
21532 KB |
Output is correct |
| 6 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 7 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 10 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 11 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 12 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 13 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 14 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 15 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 17 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 18 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 19 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 20 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 21 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 22 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 23 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 24 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 25 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 26 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 27 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 28 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 29 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 30 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 31 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 32 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 33 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 34 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 35 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 36 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 37 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 38 |
Incorrect |
13 ms |
21532 KB |
Output isn't correct |
| 39 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 40 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 41 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 42 |
Incorrect |
13 ms |
21532 KB |
Output isn't correct |
| 43 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 44 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 45 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 46 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 47 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 48 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 49 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 50 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 51 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 52 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 53 |
Correct |
13 ms |
21532 KB |
Output is correct |
| 54 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 55 |
Correct |
13 ms |
21532 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 5 |
Correct |
9 ms |
21532 KB |
Output is correct |
| 6 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 7 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 10 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 11 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 12 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 13 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 14 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 15 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 17 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 18 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 19 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 20 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 21 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 22 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 23 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 24 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 25 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 26 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 27 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 28 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 29 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 30 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 31 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 32 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 33 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 34 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 35 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 36 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 37 |
Correct |
0 ms |
21532 KB |
Output is correct |
| 38 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 39 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 40 |
Incorrect |
296 ms |
21532 KB |
Output isn't correct |
| 41 |
Correct |
533 ms |
21532 KB |
Output is correct |
| 42 |
Correct |
566 ms |
21532 KB |
Output is correct |
| 43 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 44 |
Correct |
516 ms |
21532 KB |
Output is correct |
| 45 |
Correct |
533 ms |
21532 KB |
Output is correct |
| 46 |
Correct |
163 ms |
21532 KB |
Output is correct |
| 47 |
Correct |
563 ms |
21532 KB |
Output is correct |
| 48 |
Correct |
536 ms |
21532 KB |
Output is correct |
| 49 |
Correct |
73 ms |
21532 KB |
Output is correct |
| 50 |
Incorrect |
513 ms |
21532 KB |
Output isn't correct |
| 51 |
Correct |
76 ms |
21532 KB |
Output is correct |
| 52 |
Correct |
566 ms |
21532 KB |
Output is correct |
| 53 |
Correct |
576 ms |
21532 KB |
Output is correct |
| 54 |
Correct |
579 ms |
21532 KB |
Output is correct |
| 55 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 56 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 57 |
Incorrect |
13 ms |
21532 KB |
Output isn't correct |
| 58 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 59 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 60 |
Correct |
6 ms |
21532 KB |
Output is correct |
| 61 |
Incorrect |
13 ms |
21532 KB |
Output isn't correct |
| 62 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 63 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 64 |
Correct |
3 ms |
21532 KB |
Output is correct |
| 65 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 66 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 67 |
Incorrect |
9 ms |
21532 KB |
Output isn't correct |
| 68 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 69 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 70 |
Incorrect |
6 ms |
21532 KB |
Output isn't correct |
| 71 |
Incorrect |
0 ms |
21532 KB |
Output isn't correct |
| 72 |
Correct |
13 ms |
21532 KB |
Output is correct |
| 73 |
Incorrect |
3 ms |
21532 KB |
Output isn't correct |
| 74 |
Correct |
13 ms |
21532 KB |
Output is correct |
| 75 |
Incorrect |
683 ms |
21532 KB |
Output isn't correct |
| 76 |
Incorrect |
406 ms |
21532 KB |
Output isn't correct |
| 77 |
Incorrect |
293 ms |
21532 KB |
Output isn't correct |
| 78 |
Incorrect |
63 ms |
21532 KB |
Output isn't correct |
| 79 |
Correct |
473 ms |
21532 KB |
Output is correct |
| 80 |
Correct |
709 ms |
21532 KB |
Output is correct |
| 81 |
Incorrect |
19 ms |
21532 KB |
Output isn't correct |
| 82 |
Incorrect |
623 ms |
21532 KB |
Output isn't correct |
| 83 |
Correct |
66 ms |
21532 KB |
Output is correct |
| 84 |
Incorrect |
549 ms |
21532 KB |
Output isn't correct |
| 85 |
Incorrect |
616 ms |
21532 KB |
Output isn't correct |
| 86 |
Incorrect |
623 ms |
21532 KB |
Output isn't correct |
| 87 |
Incorrect |
133 ms |
21532 KB |
Output isn't correct |
| 88 |
Incorrect |
139 ms |
21532 KB |
Output isn't correct |
| 89 |
Incorrect |
689 ms |
21532 KB |
Output isn't correct |
| 90 |
Incorrect |
706 ms |
21532 KB |
Output isn't correct |
| 91 |
Incorrect |
679 ms |
21532 KB |
Output isn't correct |
| 92 |
Correct |
673 ms |
21532 KB |
Output is correct |
| 93 |
Incorrect |
633 ms |
21532 KB |
Output isn't correct |
| 94 |
Incorrect |
709 ms |
21532 KB |
Output isn't correct |
| 95 |
Incorrect |
699 ms |
21532 KB |
Output isn't correct |
