Submission #186614

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
186614	2020-01-12T08:51:42 Z	Ruxandra985	Alternating Current (BOI18_alternating)	C++14	55 / 100	3000 ms	1108 KB

alternating

#include <bits/stdc++.h>
#define DIMN 100010
using namespace std;
pair <int,int> v[DIMN];
int d[DIMN] , cer[DIMN] , f[DIMN] , sol[DIMN];
int main()
{
    FILE *fin = stdin;
    FILE *fout = stdout;
    int n , m , i , j , ok , poz , what;
    fscanf (fin,"%d%d",&n,&m);
    for (i=1;i<=m;i++){
        fscanf (fin,"%d%d",&v[i].first,&v[i].second);
        if (v[i].first <= v[i].second){
            for (j = v[i].first ; j <= v[i].second ; j++){
                d[j]++;
            }
        }
        else {
            for (j = v[i].first ; j <= n ; j++){
                d[j]++;
            }
            for (j = 1 ; j <= v[i].second ; j++){
                d[j]++;
            }
        }
    }
    for (j=1;j<=m;j++){
 
        ok = 0;
        for (i=1;i<=n;i++){
            if (d[i] == 1 && cer[i] < 3 && cer[i] > 0)
                ok = i;
        }
 
        if (ok){
 
            for (i=1;i<=m;i++){
                if (!f[i]){ /// inca e relevant
                    if (v[i].first <= v[i].second && v[i].first <= ok && ok <= v[i].second){
                        poz = i;
                        f[i] = 1;
                    }
                    else if (v[i].first > v[i].second && (ok >= v[i].first || ok <= v[i].second)){
                        poz = i;
                        f[i] = 1;
                    }
                }
            }
 
            what = cer[ok];
 
        }
        else {
            what = 1;
            for (i=1;i<=m;i++){
                if (!f[i]){
                    poz = i;
                    f[i] = 1;
                    break;
                }
            }
        }
        sol[poz] = what - 1;
        /// update
 
        for (i=1;i<=n;i++){
            if ((v[poz].first <= v[poz].second && v[poz].first <= i && i <= v[poz].second) ||
                (v[poz].first > v[poz].second && (i >= v[poz].first || i <= v[poz].second))){
                /// i e afectat de interval
                d[i]--;
                if (cer[i] == 0){
                    if (what == 1)
                        cer[i] = 2;
                    else cer[i] = 1;
                }
                else if (cer[i] == 3){}
                else { /// e 1 sau 2 , cere ceva si i se da
                    if (cer[i] == what){
                        cer[i] = 3;
                    }
                }
 
            }
        }
 
    }
    for (i=1;i<=n;i++){
        if (cer[i] != 3){
            fprintf (fout,"impossible");
            return 0;
        }
    }
    for (i=1;i<=m;i++){
        fprintf (fout,"%d",sol[i]);
    }
    return 0;
}

Compilation message

alternating.cpp: In function 'int main()':
alternating.cpp:11:12: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     fscanf (fin,"%d%d",&n,&m);
     ~~~~~~~^~~~~~~~~~~~~~~~~~
alternating.cpp:13:16: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         fscanf (fin,"%d%d",&v[i].first,&v[i].second);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
alternating.cpp:64:18: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized]
         sol[poz] = what - 1;
         ~~~~~~~~~^~~~~~~~~~

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	380 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	372 KB	Output is correct
10	Correct	2 ms	404 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	348 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	372 KB	Output is correct
32	Correct	0 ms	376 KB	Output is correct
33	Correct	2 ms	404 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	348 KB	Output is correct
37	Correct	2 ms	404 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	380 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	372 KB	Output is correct
10	Correct	2 ms	404 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	348 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	372 KB	Output is correct
32	Correct	0 ms	376 KB	Output is correct
33	Correct	2 ms	404 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	348 KB	Output is correct
37	Correct	2 ms	404 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	376 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	296 KB	Output is correct
48	Correct	0 ms	364 KB	Output is correct
49	Correct	2 ms	376 KB	Output is correct
50	Correct	2 ms	372 KB	Output is correct
51	Correct	2 ms	376 KB	Output is correct
52	Correct	2 ms	376 KB	Output is correct
53	Correct	2 ms	372 KB	Output is correct
54	Correct	2 ms	380 KB	Output is correct
55	Correct	2 ms	376 KB	Output is correct
56	Correct	3 ms	376 KB	Output is correct
57	Correct	2 ms	348 KB	Output is correct
58	Correct	2 ms	368 KB	Output is correct
59	Correct	2 ms	380 KB	Output is correct
60	Correct	2 ms	372 KB	Output is correct
61	Correct	2 ms	348 KB	Output is correct
62	Correct	2 ms	376 KB	Output is correct
63	Correct	2 ms	376 KB	Output is correct
64	Correct	2 ms	376 KB	Output is correct
65	Correct	2 ms	376 KB	Output is correct
66	Correct	2 ms	348 KB	Output is correct
67	Correct	2 ms	376 KB	Output is correct
68	Correct	2 ms	364 KB	Output is correct
69	Correct	1 ms	376 KB	Output is correct

Subtask #3
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	380 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	372 KB	Output is correct
10	Correct	2 ms	404 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	348 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	372 KB	Output is correct
32	Correct	0 ms	376 KB	Output is correct
33	Correct	2 ms	404 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	348 KB	Output is correct
37	Correct	2 ms	404 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	376 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	296 KB	Output is correct
48	Correct	0 ms	364 KB	Output is correct
49	Correct	2 ms	376 KB	Output is correct
50	Correct	2 ms	372 KB	Output is correct
51	Correct	2 ms	376 KB	Output is correct
52	Correct	2 ms	376 KB	Output is correct
53	Correct	2 ms	372 KB	Output is correct
54	Correct	2 ms	380 KB	Output is correct
55	Correct	2 ms	376 KB	Output is correct
56	Correct	3 ms	376 KB	Output is correct
57	Correct	2 ms	348 KB	Output is correct
58	Correct	2 ms	368 KB	Output is correct
59	Correct	2 ms	380 KB	Output is correct
60	Correct	2 ms	372 KB	Output is correct
61	Correct	2 ms	348 KB	Output is correct
62	Correct	2 ms	376 KB	Output is correct
63	Correct	2 ms	376 KB	Output is correct
64	Correct	2 ms	376 KB	Output is correct
65	Correct	2 ms	376 KB	Output is correct
66	Correct	2 ms	348 KB	Output is correct
67	Correct	2 ms	376 KB	Output is correct
68	Correct	2 ms	364 KB	Output is correct
69	Correct	1 ms	376 KB	Output is correct
70	Correct	6 ms	376 KB	Output is correct
71	Correct	6 ms	408 KB	Output is correct
72	Correct	2 ms	368 KB	Output is correct
73	Correct	2 ms	376 KB	Output is correct
74	Correct	2 ms	400 KB	Output is correct
75	Correct	2 ms	376 KB	Output is correct
76	Correct	4 ms	376 KB	Output is correct
77	Correct	4 ms	408 KB	Output is correct
78	Correct	2 ms	376 KB	Output is correct
79	Correct	2 ms	376 KB	Output is correct
80	Correct	6 ms	376 KB	Output is correct
81	Correct	2 ms	376 KB	Output is correct
82	Correct	2 ms	376 KB	Output is correct
83	Correct	5 ms	376 KB	Output is correct
84	Correct	7 ms	376 KB	Output is correct
85	Correct	2 ms	376 KB	Output is correct
86	Correct	2 ms	368 KB	Output is correct
87	Correct	5 ms	376 KB	Output is correct
88	Correct	2 ms	376 KB	Output is correct
89	Correct	4 ms	424 KB	Output is correct
90	Correct	5 ms	376 KB	Output is correct
91	Correct	2 ms	376 KB	Output is correct
92	Correct	3 ms	368 KB	Output is correct
93	Correct	2 ms	368 KB	Output is correct
94	Correct	2 ms	376 KB	Output is correct
95	Correct	2 ms	376 KB	Output is correct
96	Correct	5 ms	408 KB	Output is correct
97	Correct	6 ms	376 KB	Output is correct
98	Correct	4 ms	348 KB	Output is correct

Subtask #4
0 / 19.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	3020 ms	1108 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	348 KB	Output is correct
5	Correct	2 ms	380 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	372 KB	Output is correct
10	Correct	2 ms	404 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	348 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	372 KB	Output is correct
32	Correct	0 ms	376 KB	Output is correct
33	Correct	2 ms	404 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	348 KB	Output is correct
37	Correct	2 ms	404 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	376 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	384 KB	Output is correct
45	Correct	5 ms	376 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	296 KB	Output is correct
48	Correct	0 ms	364 KB	Output is correct
49	Correct	2 ms	376 KB	Output is correct
50	Correct	2 ms	372 KB	Output is correct
51	Correct	2 ms	376 KB	Output is correct
52	Correct	2 ms	376 KB	Output is correct
53	Correct	2 ms	372 KB	Output is correct
54	Correct	2 ms	380 KB	Output is correct
55	Correct	2 ms	376 KB	Output is correct
56	Correct	3 ms	376 KB	Output is correct
57	Correct	2 ms	348 KB	Output is correct
58	Correct	2 ms	368 KB	Output is correct
59	Correct	2 ms	380 KB	Output is correct
60	Correct	2 ms	372 KB	Output is correct
61	Correct	2 ms	348 KB	Output is correct
62	Correct	2 ms	376 KB	Output is correct
63	Correct	2 ms	376 KB	Output is correct
64	Correct	2 ms	376 KB	Output is correct
65	Correct	2 ms	376 KB	Output is correct
66	Correct	2 ms	348 KB	Output is correct
67	Correct	2 ms	376 KB	Output is correct
68	Correct	2 ms	364 KB	Output is correct
69	Correct	1 ms	376 KB	Output is correct
70	Correct	6 ms	376 KB	Output is correct
71	Correct	6 ms	408 KB	Output is correct
72	Correct	2 ms	368 KB	Output is correct
73	Correct	2 ms	376 KB	Output is correct
74	Correct	2 ms	400 KB	Output is correct
75	Correct	2 ms	376 KB	Output is correct
76	Correct	4 ms	376 KB	Output is correct
77	Correct	4 ms	408 KB	Output is correct
78	Correct	2 ms	376 KB	Output is correct
79	Correct	2 ms	376 KB	Output is correct
80	Correct	6 ms	376 KB	Output is correct
81	Correct	2 ms	376 KB	Output is correct
82	Correct	2 ms	376 KB	Output is correct
83	Correct	5 ms	376 KB	Output is correct
84	Correct	7 ms	376 KB	Output is correct
85	Correct	2 ms	376 KB	Output is correct
86	Correct	2 ms	368 KB	Output is correct
87	Correct	5 ms	376 KB	Output is correct
88	Correct	2 ms	376 KB	Output is correct
89	Correct	4 ms	424 KB	Output is correct
90	Correct	5 ms	376 KB	Output is correct
91	Correct	2 ms	376 KB	Output is correct
92	Correct	3 ms	368 KB	Output is correct
93	Correct	2 ms	368 KB	Output is correct
94	Correct	2 ms	376 KB	Output is correct
95	Correct	2 ms	376 KB	Output is correct
96	Correct	5 ms	408 KB	Output is correct
97	Correct	6 ms	376 KB	Output is correct
98	Correct	4 ms	348 KB	Output is correct
99	Execution timed out	3020 ms	1108 KB	Time limit exceeded
100	Halted	0 ms	0 KB	-

Submission #186614

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 20.0 / 20.0

Subtask #3 22.0 / 22.0

Subtask #4 0 / 19.0

Subtask #5 0 / 26.0

Subtask #1
13.0 / 13.0

Subtask #2
20.0 / 20.0

Subtask #3
22.0 / 22.0

Subtask #4
0 / 19.0

Subtask #5
0 / 26.0