답안 #20433 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
20433	2017-02-11T13:06:25 Z	I_forgot_password(#50, mAng0)	초음속철도 (OJUZ11_rail)	C++	45 / 100	3000 ms	28676 KB

rail

#include<bits/stdc++.h>
#define je 1000000007
using namespace std;
pair<int,int> train[200001];
vector<int> cnt;
map<int,int> dict;
long long sum[524288];
long long dp[10001];
int can[10001];
int gae=0;
int main(){
    int n,m;
    scanf("%d%d",&n,&m);
    for(int i=0;i<m;i++){
        scanf("%d%d",&(train[i].first),&(train[i].second));
        cnt.push_back(train[i].first);
        cnt.push_back(train[i].second);
    }
    cnt.push_back(-1);
    sort(cnt.begin(),cnt.end());
    int prv = -1;
    if(cnt[1] != 1 || cnt[(int)cnt.size() - 1] != n){
        printf("0");
        return 0;
    }
    for(int i=1;i<cnt.size();i++){
        if(cnt[i-1] != cnt[i]){
            dict[cnt[i]] = gae++;
        }
    }
    sort(train,train+m);
    can[0] = 1; dp[0] = 1;
    for(int j=0;j<m;j++){
        int from = dict[train[j].first];
        int to = dict[train[j].second];
        for(int i=from;i<to;i++){
            if(can[i]){
                can[to] = 1;
                break;
            }
        }
        long long sum = 0;
        for(int i=from;i<to;i++){
            sum = (sum + dp[i]) % je;
        }
        for(int i=to;i<gae;i++){
            dp[i] = (dp[i] * 2) % je;
        }
        dp[to] = (dp[to] + sum) % je;
        /*for(int i=0;i<gae;i++){
            printf("(%d,%lld)\n",can[i],dp[i]);
        }*/
    }
    if(!can[gae-1]){
        printf("0");
    }else{
        printf("%lld",dp[gae-1]);
    }

}

Compilation message

rail.cpp: In function 'int main()':
rail.cpp:26:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=1;i<cnt.size();i++){
                  ^
rail.cpp:21:9: warning: unused variable 'prv' [-Wunused-variable]
     int prv = -1;
         ^
rail.cpp:13:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
rail.cpp:15:59: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&(train[i].first),&(train[i].second));
                                                           ^

Subtask #1
10.0 / 10.0

#	결과	메모리	Grader output
1	Correct	7804 KB	Output is correct
2	Correct	7804 KB	Output is correct
3	Correct	7804 KB	Output is correct
4	Correct	7804 KB	Output is correct
5	Correct	7804 KB	Output is correct
6	Correct	7804 KB	Output is correct
7	Correct	7804 KB	Output is correct
8	Correct	7804 KB	Output is correct
9	Correct	7804 KB	Output is correct
10	Correct	7804 KB	Output is correct
11	Correct	7804 KB	Output is correct
12	Correct	7804 KB	Output is correct
13	Correct	7804 KB	Output is correct
14	Correct	7804 KB	Output is correct
15	Correct	7804 KB	Output is correct
16	Correct	7804 KB	Output is correct
17	Correct	7804 KB	Output is correct
18	Correct	7804 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	메모리	Grader output
1	Correct	7804 KB	Output is correct
2	Correct	7804 KB	Output is correct
3	Correct	7804 KB	Output is correct
4	Correct	7804 KB	Output is correct
5	Correct	7804 KB	Output is correct
6	Correct	7804 KB	Output is correct
7	Correct	7804 KB	Output is correct
8	Correct	7804 KB	Output is correct
9	Correct	7804 KB	Output is correct
10	Correct	7804 KB	Output is correct
11	Correct	7804 KB	Output is correct
12	Correct	7804 KB	Output is correct
13	Correct	7804 KB	Output is correct
14	Correct	7804 KB	Output is correct
15	Correct	7804 KB	Output is correct
16	Correct	7804 KB	Output is correct
17	Correct	7804 KB	Output is correct
18	Correct	7804 KB	Output is correct
19	Correct	7804 KB	Output is correct
20	Correct	7804 KB	Output is correct
21	Correct	7804 KB	Output is correct
22	Correct	7804 KB	Output is correct
23	Correct	7804 KB	Output is correct
24	Correct	7804 KB	Output is correct
25	Correct	7804 KB	Output is correct
26	Correct	7804 KB	Output is correct
27	Correct	7804 KB	Output is correct
28	Correct	7804 KB	Output is correct
29	Correct	7804 KB	Output is correct
30	Correct	7804 KB	Output is correct
31	Correct	7804 KB	Output is correct
32	Correct	7804 KB	Output is correct
33	Correct	7804 KB	Output is correct
34	Correct	7804 KB	Output is correct
35	Correct	7804 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	7804 KB	Output is correct
2	Correct	0 ms	7804 KB	Output is correct
3	Correct	0 ms	7804 KB	Output is correct
4	Correct	19 ms	7944 KB	Output is correct
5	Execution timed out	3000 ms	12440 KB	Execution timed out
6	Execution timed out	3000 ms	27092 KB	Execution timed out
7	Execution timed out	3000 ms	26828 KB	Execution timed out
8	Correct	0 ms	7804 KB	Output is correct
9	Execution timed out	3000 ms	25772 KB	Execution timed out
10	Execution timed out	3000 ms	26564 KB	Execution timed out
11	Execution timed out	3000 ms	10492 KB	Execution timed out
12	Execution timed out	3000 ms	27092 KB	Execution timed out
13	Execution timed out	3000 ms	26696 KB	Execution timed out
14	Correct	56 ms	10960 KB	Output is correct
15	Execution timed out	3000 ms	19304 KB	Execution timed out
16	Correct	59 ms	10960 KB	Output is correct
17	Execution timed out	3000 ms	27092 KB	Execution timed out
18	Execution timed out	3000 ms	27092 KB	Execution timed out
19	Execution timed out	3000 ms	24584 KB	Execution timed out

Subtask #4
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	7804 KB	Output is correct
2	Correct	0 ms	7804 KB	Output is correct
3	Correct	0 ms	7804 KB	Output is correct
4	Correct	0 ms	7804 KB	Output is correct
5	Correct	0 ms	7804 KB	Output is correct
6	Correct	0 ms	7804 KB	Output is correct
7	Correct	0 ms	7804 KB	Output is correct
8	Correct	0 ms	7804 KB	Output is correct
9	Correct	0 ms	7804 KB	Output is correct
10	Correct	0 ms	7804 KB	Output is correct
11	Correct	0 ms	7804 KB	Output is correct
12	Correct	0 ms	7804 KB	Output is correct
13	Correct	0 ms	7804 KB	Output is correct
14	Correct	0 ms	7804 KB	Output is correct
15	Correct	0 ms	7804 KB	Output is correct
16	Correct	0 ms	7804 KB	Output is correct
17	Correct	0 ms	7804 KB	Output is correct
18	Correct	0 ms	7804 KB	Output is correct
19	Correct	0 ms	7804 KB	Output is correct
20	Correct	0 ms	7804 KB	Output is correct
21	Correct	0 ms	7804 KB	Output is correct
22	Correct	0 ms	7804 KB	Output is correct
23	Correct	0 ms	7804 KB	Output is correct
24	Correct	0 ms	7804 KB	Output is correct
25	Correct	0 ms	7804 KB	Output is correct
26	Correct	0 ms	7804 KB	Output is correct
27	Correct	0 ms	7804 KB	Output is correct
28	Correct	0 ms	7804 KB	Output is correct
29	Correct	0 ms	7804 KB	Output is correct
30	Correct	0 ms	7804 KB	Output is correct
31	Correct	0 ms	7804 KB	Output is correct
32	Correct	0 ms	7804 KB	Output is correct
33	Correct	0 ms	7804 KB	Output is correct
34	Correct	0 ms	7804 KB	Output is correct
35	Correct	0 ms	7804 KB	Output is correct
36	Correct	136 ms	8340 KB	Output is correct
37	Correct	89 ms	8208 KB	Output is correct
38	Correct	29 ms	8076 KB	Output is correct
39	Correct	0 ms	7944 KB	Output is correct
40	Correct	29 ms	8076 KB	Output is correct
41	Correct	3 ms	7944 KB	Output is correct
42	Correct	139 ms	8340 KB	Output is correct
43	Correct	0 ms	7804 KB	Output is correct
44	Correct	113 ms	8208 KB	Output is correct
45	Correct	0 ms	7944 KB	Output is correct
46	Correct	83 ms	8076 KB	Output is correct
47	Correct	63 ms	8076 KB	Output is correct
48	Correct	66 ms	8076 KB	Output is correct
49	Correct	3 ms	7944 KB	Output is correct
50	Correct	3 ms	7944 KB	Output is correct
51	Correct	3 ms	7944 KB	Output is correct
52	Correct	6 ms	7936 KB	Output is correct
53	Correct	3 ms	7944 KB	Output is correct
54	Correct	26 ms	7944 KB	Output is correct
55	Correct	0 ms	7944 KB	Output is correct

Subtask #5
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	7804 KB	Output is correct
2	Correct	0 ms	7804 KB	Output is correct
3	Correct	0 ms	7804 KB	Output is correct
4	Correct	0 ms	7804 KB	Output is correct
5	Correct	0 ms	7804 KB	Output is correct
6	Correct	0 ms	7804 KB	Output is correct
7	Correct	0 ms	7804 KB	Output is correct
8	Correct	0 ms	7804 KB	Output is correct
9	Correct	0 ms	7804 KB	Output is correct
10	Correct	0 ms	7804 KB	Output is correct
11	Correct	0 ms	7804 KB	Output is correct
12	Correct	0 ms	7804 KB	Output is correct
13	Correct	0 ms	7804 KB	Output is correct
14	Correct	0 ms	7804 KB	Output is correct
15	Correct	0 ms	7804 KB	Output is correct
16	Correct	0 ms	7804 KB	Output is correct
17	Correct	0 ms	7804 KB	Output is correct
18	Correct	0 ms	7804 KB	Output is correct
19	Correct	0 ms	7804 KB	Output is correct
20	Correct	0 ms	7804 KB	Output is correct
21	Correct	0 ms	7804 KB	Output is correct
22	Correct	0 ms	7804 KB	Output is correct
23	Correct	0 ms	7804 KB	Output is correct
24	Correct	0 ms	7804 KB	Output is correct
25	Correct	0 ms	7804 KB	Output is correct
26	Correct	0 ms	7804 KB	Output is correct
27	Correct	0 ms	7804 KB	Output is correct
28	Correct	0 ms	7804 KB	Output is correct
29	Correct	0 ms	7804 KB	Output is correct
30	Correct	0 ms	7804 KB	Output is correct
31	Correct	0 ms	7804 KB	Output is correct
32	Correct	0 ms	7804 KB	Output is correct
33	Correct	0 ms	7804 KB	Output is correct
34	Correct	0 ms	7804 KB	Output is correct
35	Correct	0 ms	7804 KB	Output is correct
36	Correct	0 ms	7804 KB	Output is correct
37	Correct	0 ms	7804 KB	Output is correct
38	Correct	0 ms	7804 KB	Output is correct
39	Correct	19 ms	7944 KB	Output is correct
40	Execution timed out	3000 ms	12440 KB	Execution timed out
41	Execution timed out	3000 ms	27092 KB	Execution timed out
42	Execution timed out	3000 ms	26828 KB	Execution timed out
43	Correct	0 ms	7804 KB	Output is correct
44	Execution timed out	3000 ms	25772 KB	Execution timed out
45	Execution timed out	3000 ms	26564 KB	Execution timed out
46	Execution timed out	3000 ms	10492 KB	Execution timed out
47	Execution timed out	3000 ms	27092 KB	Execution timed out
48	Execution timed out	3000 ms	26696 KB	Execution timed out
49	Correct	56 ms	10960 KB	Output is correct
50	Execution timed out	3000 ms	19304 KB	Execution timed out
51	Correct	59 ms	10960 KB	Output is correct
52	Execution timed out	3000 ms	27092 KB	Execution timed out
53	Execution timed out	3000 ms	27092 KB	Execution timed out
54	Execution timed out	3000 ms	24584 KB	Execution timed out
55	Correct	136 ms	8340 KB	Output is correct
56	Correct	89 ms	8208 KB	Output is correct
57	Correct	29 ms	8076 KB	Output is correct
58	Correct	0 ms	7944 KB	Output is correct
59	Correct	29 ms	8076 KB	Output is correct
60	Correct	3 ms	7944 KB	Output is correct
61	Correct	139 ms	8340 KB	Output is correct
62	Correct	0 ms	7804 KB	Output is correct
63	Correct	113 ms	8208 KB	Output is correct
64	Correct	0 ms	7944 KB	Output is correct
65	Correct	83 ms	8076 KB	Output is correct
66	Correct	63 ms	8076 KB	Output is correct
67	Correct	66 ms	8076 KB	Output is correct
68	Correct	3 ms	7944 KB	Output is correct
69	Correct	3 ms	7944 KB	Output is correct
70	Correct	3 ms	7944 KB	Output is correct
71	Correct	6 ms	7936 KB	Output is correct
72	Correct	3 ms	7944 KB	Output is correct
73	Correct	26 ms	7944 KB	Output is correct
74	Correct	0 ms	7944 KB	Output is correct
75	Execution timed out	3000 ms	28676 KB	Execution timed out
76	Execution timed out	3000 ms	22208 KB	Execution timed out
77	Correct	1539 ms	10960 KB	Output is correct
78	Correct	53 ms	10960 KB	Output is correct
79	Correct	79 ms	10960 KB	Output is correct
80	Execution timed out	3000 ms	28676 KB	Execution timed out
81	Correct	59 ms	8076 KB	Output is correct
82	Execution timed out	3000 ms	26564 KB	Execution timed out
83	Correct	56 ms	10960 KB	Output is correct
84	Execution timed out	3000 ms	23924 KB	Execution timed out
85	Execution timed out	3000 ms	19172 KB	Execution timed out
86	Execution timed out	3000 ms	19304 KB	Execution timed out
87	Correct	139 ms	10960 KB	Output is correct
88	Correct	109 ms	10960 KB	Output is correct
89	Execution timed out	3000 ms	28676 KB	Execution timed out
90	Execution timed out	3000 ms	28676 KB	Execution timed out
91	Execution timed out	3000 ms	28676 KB	Execution timed out
92	Correct	96 ms	10960 KB	Output is correct
93	Execution timed out	3000 ms	19172 KB	Execution timed out
94	Execution timed out	3000 ms	28676 KB	Execution timed out
95	Execution timed out	3000 ms	28676 KB	Execution timed out

답안 #20433

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 8.0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 27.0 / 27.0

Subtask #5 0 / 30.0

Subtask #1
10.0 / 10.0

Subtask #2
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
27.0 / 27.0

Subtask #5
0 / 30.0