結果
問題 | No.330 Eigenvalue Decomposition |
ユーザー | LayCurse |
提出日時 | 2015-12-23 00:03:41 |
言語 | C++11 (gcc 11.4.0) |
結果 |
AC
|
実行時間 | 64 ms / 5,000 ms |
コード長 | 3,154 bytes |
コンパイル時間 | 1,471 ms |
コンパイル使用メモリ | 159,768 KB |
実行使用メモリ | 6,272 KB |
最終ジャッジ日時 | 2024-09-18 19:20:25 |
合計ジャッジ時間 | 3,216 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 30 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 29 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 31 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 21 ms
5,376 KB |
testcase_09 | AC | 55 ms
5,888 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 18 ms
5,376 KB |
testcase_12 | AC | 60 ms
6,272 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 17 ms
5,376 KB |
testcase_15 | AC | 3 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 3 ms
5,376 KB |
testcase_18 | AC | 11 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 4 ms
5,376 KB |
testcase_21 | AC | 64 ms
6,272 KB |
testcase_22 | AC | 3 ms
5,376 KB |
testcase_23 | AC | 6 ms
5,376 KB |
testcase_24 | AC | 55 ms
5,760 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 4 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 1 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 2 ms
5,376 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | AC | 2 ms
5,376 KB |
testcase_35 | AC | 1 ms
5,376 KB |
コンパイルメッセージ
main.cpp: In function ‘void reader(double*)’: main.cpp:15:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 15 | void reader(double *x){scanf("%lf",x);} | ~~~~~^~~~~~~~~ main.cpp: In function ‘int main()’: main.cpp:57:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 57 | scanf("%d%d",&N,&M); | ~~~~~^~~~~~~~~~~~~~ main.cpp:58:17: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 58 | rep(i,M) scanf("%d%d%d",A+i,B+i,C+i); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~
ソースコード
#include<bits/stdc++.h> using namespace std; #define REP(i,a,b) for(i=a;i<b;i++) #define rep(i,n) REP(i,0,n) #define mygc(c) (c)=getchar_unlocked() #define mypc(c) putchar_unlocked(c) #define ll long long #define ull unsigned ll void reader(int *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);} void reader(ll *x){int k,m=0;*x=0;for(;;){mygc(k);if(k=='-'){m=1;break;}if('0'<=k&&k<='9'){*x=k-'0';break;}}for(;;){mygc(k);if(k<'0'||k>'9')break;*x=(*x)*10+k-'0';}if(m)(*x)=-(*x);} void reader(double *x){scanf("%lf",x);} int reader(char c[]){int i,s=0;for(;;){mygc(i);if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF) break;}c[s++]=i;for(;;){mygc(i);if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF) break;c[s++]=i;}c[s]='\0';return s;} template <class T, class S> void reader(T *x, S *y){reader(x);reader(y);} template <class T, class S, class U> void reader(T *x, S *y, U *z){reader(x);reader(y);reader(z);} template <class T, class S, class U, class V> void reader(T *x, S *y, U *z, V *w){reader(x);reader(y);reader(z);reader(w);} void writer(int x, char c){int s=0,m=0;char f[10];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);} void writer(ll x, char c){int s=0,m=0;char f[20];if(x<0)m=1,x=-x;while(x)f[s++]=x%10,x/=10;if(!s)f[s++]=0;if(m)mypc('-');while(s--)mypc(f[s]+'0');mypc(c);} void writer(double x, char c){printf("%.15f",x);mypc(c);} void writer(const char c[]){int i;for(i=0;c[i]!='\0';i++)mypc(c[i]);} void writer(const char x[], char c){int i;for(i=0;x[i]!='\0';i++)mypc(x[i]);mypc(c);} template<class T> void writerLn(T x){writer(x,'\n');} template<class T, class S> void writerLn(T x, S y){writer(x,' ');writer(y,'\n');} template<class T, class S, class U> void writerLn(T x, S y, U z){writer(x,' ');writer(y,' ');writer(z,'\n');} template<class T> void writerArr(T x[], int n){int i;if(!n){mypc('\n');return;}rep(i,n-1)writer(x[i],' ');writer(x[n-1],'\n');} char memarr[17000000]; void *mem = memarr; #define MD 1000000007 struct unionFind{ int *d, N, M; inline void malloc(int n){d=(int*)std::malloc(n*sizeof(int));M=n;} inline void *malloc(int n, void *mem){d=(int*)mem;M=n;return d+n;} inline void init(int n){int i;N=n;rep(i,n)d[i]=-1;} inline void init(void){init(M);} inline int get(int a){int t=a,k;while(d[t]>=0)t=d[t];while(d[a]>=0)k=d[a],d[a]=t,a=k;return a;} inline int connect(int a, int b){if(d[a]>=0)a=get(a);if(d[b]>=0)b=get(b);if(a==b)return 0;if(d[a]<d[b])d[a]+=d[b],d[b]=a;else d[b]+=d[a],d[a]=b;return 1;} inline int operator()(int a){return get(a);} inline int operator()(int a, int b){return connect(a,b);} inline int& operator[](int a){return d[a];} inline int sizeList(int res[]){int i,s=0;rep(i,N)if(d[i]<0)res[s++]=-d[i];return s;} }; int N, M; int A[300000], B[300000], C[300000]; int main(){ int i, j, k; int res; unionFind uf; scanf("%d%d",&N,&M); rep(i,M) scanf("%d%d%d",A+i,B+i,C+i); uf.malloc(N+10); uf.init(N+10); res = N; rep(i,M) res -= uf(A[i],B[i]); writerLn(res); return 0; }