Submission #1693946
Source Code Expand
//2017-10-19 //miaomiao // #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <iostream> #include <algorithm> #include <vector> using namespace std; #define pb push_back #define For(i, a, b) for(int i = (a); i <= (int)(b); ++i) #define N (100000+5) vector<int> G[N]; bool col[N]; int ans; #define v G[now][i] void Dfs(int now, int F){ For(i, 0, G[now].size()-1) if(v != F) Dfs(v, now); if(!col[now]) col[now] ^= 1, col[F] ^= 1, ++ans; } #undef v int main(){ int n, m, u, v; scanf("%d%d", &n, &m); For(i, 1, m){ scanf("%d%d", &u, &v); G[u].pb(v); G[v].pb(u); } if(n == 1){ puts("-1"); return 0; } Dfs(1, 0); if(col[0]) puts("-1"); else printf("%d\n", ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Namori |
User | miaomiao |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 784 Byte |
Status | RE |
Exec Time | 2131 ms |
Memory | 268288 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:36:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ ./Main.cpp:38:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &u, &v); ^
Judge Result
Set Name | Sample | Subtask1 | All | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 1500 | 0 / 700 | ||||||||||||||||
Status |
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Set Name | Test Cases |
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Sample | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt |
Subtask1 | 0_00.txt, 0_01.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt |
All | 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt, 2_13.txt, 2_14.txt, 2_15.txt, 2_16.txt, 2_17.txt, 2_18.txt, 2_19.txt, 2_20.txt, 2_21.txt, 2_22.txt, 2_23.txt, 2_24.txt, 2_25.txt, 2_26.txt, 2_27.txt, 2_28.txt, 2_29.txt, 2_30.txt, 2_31.txt, 2_32.txt, 2_33.txt, 2_34.txt, 2_35.txt, 2_36.txt, 2_37.txt, 2_38.txt, 2_39.txt, 2_40.txt, 2_41.txt, 2_42.txt, 2_43.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
0_00.txt | AC | 3 ms | 2560 KB |
0_01.txt | AC | 3 ms | 2560 KB |
0_02.txt | RE | 259 ms | 264704 KB |
0_03.txt | RE | 261 ms | 264704 KB |
1_00.txt | AC | 3 ms | 2560 KB |
1_01.txt | AC | 46 ms | 13312 KB |
1_02.txt | WA | 37 ms | 8192 KB |
1_03.txt | WA | 31 ms | 6264 KB |
1_04.txt | WA | 45 ms | 9472 KB |
1_05.txt | WA | 47 ms | 9088 KB |
1_06.txt | WA | 43 ms | 9088 KB |
1_07.txt | WA | 45 ms | 8192 KB |
1_08.txt | WA | 43 ms | 9600 KB |
1_09.txt | WA | 37 ms | 6144 KB |
1_10.txt | WA | 38 ms | 6016 KB |
1_11.txt | WA | 39 ms | 5888 KB |
1_12.txt | WA | 40 ms | 5888 KB |
1_13.txt | AC | 42 ms | 6528 KB |
1_14.txt | WA | 41 ms | 5888 KB |
1_15.txt | WA | 41 ms | 5888 KB |
1_16.txt | AC | 40 ms | 5888 KB |
1_17.txt | WA | 40 ms | 5888 KB |
2_00.txt | RE | 255 ms | 264704 KB |
2_01.txt | RE | 440 ms | 267904 KB |
2_02.txt | RE | 469 ms | 268160 KB |
2_03.txt | TLE | 2105 ms | 11512 KB |
2_04.txt | RE | 500 ms | 268032 KB |
2_05.txt | RE | 522 ms | 268032 KB |
2_06.txt | RE | 533 ms | 267904 KB |
2_07.txt | RE | 500 ms | 268032 KB |
2_08.txt | RE | 533 ms | 268032 KB |
2_09.txt | TLE | 2104 ms | 6400 KB |
2_10.txt | TLE | 2104 ms | 6144 KB |
2_11.txt | RE | 1411 ms | 268032 KB |
2_12.txt | TLE | 2104 ms | 6016 KB |
2_13.txt | RE | 558 ms | 267904 KB |
2_14.txt | TLE | 2131 ms | 267776 KB |
2_15.txt | TLE | 2109 ms | 46080 KB |
2_16.txt | TLE | 2105 ms | 9856 KB |
2_17.txt | RE | 395 ms | 268032 KB |
2_18.txt | RE | 256 ms | 264704 KB |
2_19.txt | RE | 436 ms | 268156 KB |
2_20.txt | TLE | 2104 ms | 11896 KB |
2_21.txt | RE | 448 ms | 267904 KB |
2_22.txt | RE | 483 ms | 268160 KB |
2_23.txt | RE | 505 ms | 268032 KB |
2_24.txt | RE | 535 ms | 267904 KB |
2_25.txt | RE | 480 ms | 268288 KB |
2_26.txt | RE | 522 ms | 268032 KB |
2_27.txt | TLE | 2105 ms | 15872 KB |
2_28.txt | RE | 713 ms | 268160 KB |
2_29.txt | TLE | 2104 ms | 6912 KB |
2_30.txt | TLE | 2104 ms | 6016 KB |
2_31.txt | RE | 627 ms | 268032 KB |
2_32.txt | TLE | 2127 ms | 214912 KB |
2_33.txt | TLE | 2106 ms | 27008 KB |
2_34.txt | TLE | 2115 ms | 89472 KB |
2_35.txt | TLE | 2110 ms | 52352 KB |
2_36.txt | TLE | 2104 ms | 7288 KB |
2_37.txt | TLE | 2104 ms | 8440 KB |
2_38.txt | TLE | 2104 ms | 8312 KB |
2_39.txt | TLE | 2104 ms | 7416 KB |
2_40.txt | TLE | 2104 ms | 7416 KB |
2_41.txt | TLE | 2104 ms | 7672 KB |
2_42.txt | TLE | 2104 ms | 7544 KB |
2_43.txt | TLE | 2104 ms | 7160 KB |