#include <stdio.h>
int abs_(int a) { return a > 0 ? a : -a; }
int main() {
int x1, y1, x2, y2, d, dx, dy, x, y, tmp;
scanf("%d%d%d%d%d", &x1, &y1, &x2, &y2, &d), dx = abs_(x2 - x1), dy = abs_(y2 - y1);
if (d == dx + dy) {
printf("0\n");
return 0;
}
if (dx + dy <= 1 || d < dx + dy || (d - (dx + dy)) % 2 != 0) {
printf("impossible\n");
return 0;
}
d -= dx + dy, d /= 2;
if (dx > 1) {
if (x1 > x2)
tmp = x1, x1 = x2, x2 = tmp;
if (y1 > y2)
tmp = y1, y1 = y2, y2 = tmp;
printf("%d\n", y2 - y1 - 1 + d * 2);
for (y = y1 + 1 - d; y <= y2 - 1 + d; y++)
printf("%d %d\n", x1 + 1, y);
return 0;
}
if (dy > 1) {
if (x1 > x2)
tmp = x1, x1 = x2, x2 = tmp;
if (y1 > y2)
tmp = y1, y1 = y2, y2 = tmp;
printf("%d\n", x2 - x1 - 1 + d * 2);
for (x = x1 + 1 - d; x <= x2 - 1 + d; x++)
printf("%d %d\n", x, y1 + 1);
return 0;
}
if (d == 1) {
printf("impossible\n");
return 0;
}
if (x1 > x2)
tmp = x1, x1 = x2, x2 = tmp, tmp = y1, y1 = y2, y2 = tmp;
printf("%d\n", (d - 1) * 2);
for (x = x1 + 1; x < x1 + d; x++)
printf("%d %d\n", x, y1);
if (y1 < y2)
for (y = y1 + 1; y < y1 + d; y++)
printf("%d %d\n", x1, y);
else
for (y = y1 - 1; y > y1 - d; y--)
printf("%d %d\n", x1, y);
return 0;
}
Compilation message
towerdefense.c: In function 'main':
towerdefense.c:8:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
8 | scanf("%d%d%d%d%d", &x1, &y1, &x2, &y2, &d), dx = abs_(x2 - x1), dy = abs_(y2 - y1);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
288 KB |
Output is correct |
3 |
Correct |
1 ms |
288 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
0 ms |
212 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
284 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
288 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
284 KB |
Output is correct |
20 |
Correct |
0 ms |
212 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
0 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
212 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
284 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
288 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
288 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
288 KB |
Output is correct |
10 |
Correct |
1 ms |
288 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
284 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
0 ms |
212 KB |
Output is correct |
20 |
Correct |
0 ms |
288 KB |
Output is correct |
21 |
Correct |
0 ms |
212 KB |
Output is correct |
22 |
Correct |
0 ms |
212 KB |
Output is correct |
23 |
Correct |
0 ms |
212 KB |
Output is correct |
24 |
Correct |
0 ms |
212 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
0 ms |
284 KB |
Output is correct |
27 |
Correct |
0 ms |
212 KB |
Output is correct |
28 |
Correct |
0 ms |
212 KB |
Output is correct |
29 |
Correct |
0 ms |
212 KB |
Output is correct |
30 |
Correct |
0 ms |
212 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Correct |
0 ms |
212 KB |
Output is correct |
33 |
Correct |
0 ms |
212 KB |
Output is correct |
34 |
Correct |
0 ms |
212 KB |
Output is correct |
35 |
Correct |
0 ms |
284 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
0 ms |
288 KB |
Output is correct |
38 |
Correct |
0 ms |
212 KB |
Output is correct |
39 |
Correct |
0 ms |
212 KB |
Output is correct |
40 |
Correct |
0 ms |
212 KB |
Output is correct |
41 |
Correct |
0 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
0 ms |
212 KB |
Output is correct |
44 |
Correct |
0 ms |
284 KB |
Output is correct |
45 |
Correct |
0 ms |
212 KB |
Output is correct |
46 |
Correct |
0 ms |
212 KB |
Output is correct |
47 |
Correct |
0 ms |
212 KB |
Output is correct |
48 |
Correct |
0 ms |
284 KB |
Output is correct |
49 |
Correct |
0 ms |
288 KB |
Output is correct |
50 |
Correct |
1 ms |
212 KB |
Output is correct |
51 |
Correct |
0 ms |
212 KB |
Output is correct |
52 |
Correct |
1 ms |
212 KB |
Output is correct |
53 |
Correct |
0 ms |
212 KB |
Output is correct |
54 |
Correct |
0 ms |
212 KB |
Output is correct |
55 |
Correct |
0 ms |
212 KB |
Output is correct |
56 |
Correct |
0 ms |
212 KB |
Output is correct |
57 |
Correct |
1 ms |
212 KB |
Output is correct |
58 |
Correct |
0 ms |
212 KB |
Output is correct |
59 |
Correct |
1 ms |
284 KB |
Output is correct |
60 |
Correct |
1 ms |
212 KB |
Output is correct |
61 |
Correct |
0 ms |
284 KB |
Output is correct |
62 |
Correct |
0 ms |
212 KB |
Output is correct |
63 |
Correct |
0 ms |
212 KB |
Output is correct |
64 |
Correct |
0 ms |
212 KB |
Output is correct |
65 |
Correct |
0 ms |
284 KB |
Output is correct |
66 |
Correct |
0 ms |
212 KB |
Output is correct |
67 |
Correct |
0 ms |
212 KB |
Output is correct |
68 |
Correct |
0 ms |
212 KB |
Output is correct |
69 |
Correct |
0 ms |
212 KB |
Output is correct |
70 |
Correct |
1 ms |
284 KB |
Output is correct |
71 |
Correct |
0 ms |
212 KB |
Output is correct |
72 |
Correct |
0 ms |
212 KB |
Output is correct |
73 |
Correct |
0 ms |
212 KB |
Output is correct |
74 |
Correct |
0 ms |
212 KB |
Output is correct |
75 |
Correct |
0 ms |
212 KB |
Output is correct |
76 |
Correct |
0 ms |
212 KB |
Output is correct |
77 |
Correct |
0 ms |
212 KB |
Output is correct |
78 |
Correct |
0 ms |
212 KB |
Output is correct |
79 |
Correct |
1 ms |
284 KB |
Output is correct |
80 |
Correct |
0 ms |
212 KB |
Output is correct |
81 |
Correct |
0 ms |
212 KB |
Output is correct |
82 |
Correct |
1 ms |
212 KB |
Output is correct |
83 |
Correct |
0 ms |
212 KB |
Output is correct |
84 |
Correct |
0 ms |
212 KB |
Output is correct |
85 |
Correct |
1 ms |
212 KB |
Output is correct |
86 |
Correct |
0 ms |
212 KB |
Output is correct |
87 |
Correct |
0 ms |
212 KB |
Output is correct |
88 |
Correct |
0 ms |
212 KB |
Output is correct |
89 |
Correct |
0 ms |
288 KB |
Output is correct |
90 |
Correct |
1 ms |
212 KB |
Output is correct |
91 |
Correct |
1 ms |
284 KB |
Output is correct |
92 |
Correct |
0 ms |
212 KB |
Output is correct |
93 |
Correct |
1 ms |
212 KB |
Output is correct |
94 |
Correct |
0 ms |
212 KB |
Output is correct |
95 |
Correct |
0 ms |
212 KB |
Output is correct |
96 |
Correct |
0 ms |
212 KB |
Output is correct |
97 |
Correct |
0 ms |
212 KB |
Output is correct |
98 |
Correct |
0 ms |
212 KB |
Output is correct |
99 |
Correct |
1 ms |
212 KB |
Output is correct |
100 |
Correct |
1 ms |
288 KB |
Output is correct |
101 |
Correct |
0 ms |
212 KB |
Output is correct |
102 |
Correct |
0 ms |
244 KB |
Output is correct |
103 |
Correct |
0 ms |
212 KB |
Output is correct |
104 |
Correct |
1 ms |
284 KB |
Output is correct |
105 |
Correct |
1 ms |
212 KB |
Output is correct |
106 |
Correct |
1 ms |
284 KB |
Output is correct |
107 |
Correct |
0 ms |
212 KB |
Output is correct |
108 |
Correct |
0 ms |
212 KB |
Output is correct |
109 |
Correct |
0 ms |
212 KB |
Output is correct |
110 |
Correct |
0 ms |
288 KB |
Output is correct |
111 |
Correct |
0 ms |
212 KB |
Output is correct |
112 |
Correct |
0 ms |
212 KB |
Output is correct |
113 |
Correct |
0 ms |
212 KB |
Output is correct |
114 |
Correct |
1 ms |
212 KB |
Output is correct |
115 |
Correct |
0 ms |
284 KB |
Output is correct |
116 |
Correct |
0 ms |
212 KB |
Output is correct |
117 |
Correct |
0 ms |
212 KB |
Output is correct |
118 |
Correct |
0 ms |
212 KB |
Output is correct |
119 |
Correct |
0 ms |
212 KB |
Output is correct |
120 |
Correct |
0 ms |
212 KB |
Output is correct |
121 |
Correct |
0 ms |
288 KB |
Output is correct |
122 |
Correct |
0 ms |
284 KB |
Output is correct |
123 |
Correct |
0 ms |
212 KB |
Output is correct |
124 |
Correct |
0 ms |
212 KB |
Output is correct |
125 |
Correct |
0 ms |
212 KB |
Output is correct |
126 |
Correct |
0 ms |
212 KB |
Output is correct |
127 |
Correct |
0 ms |
212 KB |
Output is correct |
128 |
Correct |
1 ms |
212 KB |
Output is correct |
129 |
Correct |
0 ms |
212 KB |
Output is correct |
130 |
Correct |
0 ms |
292 KB |
Output is correct |
131 |
Correct |
1 ms |
212 KB |
Output is correct |
132 |
Correct |
0 ms |
284 KB |
Output is correct |
133 |
Correct |
0 ms |
288 KB |
Output is correct |
134 |
Correct |
0 ms |
212 KB |
Output is correct |
135 |
Correct |
0 ms |
212 KB |
Output is correct |
136 |
Correct |
0 ms |
284 KB |
Output is correct |
137 |
Correct |
0 ms |
212 KB |
Output is correct |
138 |
Correct |
0 ms |
212 KB |
Output is correct |
139 |
Correct |
1 ms |
288 KB |
Output is correct |
140 |
Correct |
1 ms |
212 KB |
Output is correct |
141 |
Correct |
0 ms |
212 KB |
Output is correct |
142 |
Correct |
0 ms |
212 KB |
Output is correct |
143 |
Correct |
1 ms |
212 KB |
Output is correct |
144 |
Correct |
1 ms |
212 KB |
Output is correct |
145 |
Correct |
0 ms |
212 KB |
Output is correct |
146 |
Correct |
1 ms |
212 KB |
Output is correct |
147 |
Correct |
1 ms |
212 KB |
Output is correct |
148 |
Correct |
0 ms |
212 KB |
Output is correct |
149 |
Correct |
0 ms |
212 KB |
Output is correct |