結果
問題 | No.1637 Easy Tree Query |
ユーザー | LayCurse |
提出日時 | 2021-08-06 21:49:03 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 20 ms / 2,000 ms |
コード長 | 3,959 bytes |
コンパイル時間 | 2,445 ms |
コンパイル使用メモリ | 221,236 KB |
実行使用メモリ | 9,984 KB |
最終ジャッジ日時 | 2024-09-17 03:49:14 |
合計ジャッジ時間 | 5,448 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 16 ms
9,984 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 7 ms
6,528 KB |
testcase_05 | AC | 13 ms
7,168 KB |
testcase_06 | AC | 9 ms
6,528 KB |
testcase_07 | AC | 5 ms
5,376 KB |
testcase_08 | AC | 6 ms
5,888 KB |
testcase_09 | AC | 13 ms
8,576 KB |
testcase_10 | AC | 7 ms
5,888 KB |
testcase_11 | AC | 15 ms
9,216 KB |
testcase_12 | AC | 14 ms
8,448 KB |
testcase_13 | AC | 5 ms
5,376 KB |
testcase_14 | AC | 11 ms
8,320 KB |
testcase_15 | AC | 15 ms
9,344 KB |
testcase_16 | AC | 13 ms
9,344 KB |
testcase_17 | AC | 6 ms
5,504 KB |
testcase_18 | AC | 11 ms
7,296 KB |
testcase_19 | AC | 13 ms
7,552 KB |
testcase_20 | AC | 16 ms
8,320 KB |
testcase_21 | AC | 9 ms
7,296 KB |
testcase_22 | AC | 19 ms
9,856 KB |
testcase_23 | AC | 6 ms
5,504 KB |
testcase_24 | AC | 8 ms
7,296 KB |
testcase_25 | AC | 12 ms
7,040 KB |
testcase_26 | AC | 16 ms
8,576 KB |
testcase_27 | AC | 20 ms
9,728 KB |
testcase_28 | AC | 10 ms
6,912 KB |
testcase_29 | AC | 12 ms
8,064 KB |
testcase_30 | AC | 7 ms
6,784 KB |
testcase_31 | AC | 9 ms
5,504 KB |
testcase_32 | AC | 8 ms
6,528 KB |
testcase_33 | AC | 12 ms
6,528 KB |
testcase_34 | AC | 7 ms
8,832 KB |
ソースコード
#pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC optimize("inline") #include<bits/stdc++.h> using namespace std; void*wmem; char memarr[96000000]; template<class T> inline void walloc1d(T **arr, int x, void **mem = &wmem){ static int skip[16] = {0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; (*mem) = (void*)( ((char*)(*mem)) + skip[((unsigned long long)(*mem)) & 15] ); (*arr)=(T*)(*mem); (*mem)=((*arr)+x); } template<class T> inline void walloc1d(T **arr, int x1, int x2, void **mem = &wmem){ walloc1d(arr, x2-x1, mem); (*arr) -= x1; } inline int my_getchar_unlocked(){ static char buf[1048576]; static int s = 1048576; static int e = 1048576; if(s == e && e == 1048576){ e = fread_unlocked(buf, 1, 1048576, stdin); s = 0; } if(s == e){ return EOF; } return buf[s++]; } inline void rd(int &x){ int k; int m=0; x=0; for(;;){ k = my_getchar_unlocked(); if(k=='-'){ m=1; break; } if('0'<=k&&k<='9'){ x=k-'0'; break; } } for(;;){ k = my_getchar_unlocked(); if(k<'0'||k>'9'){ break; } x=x*10+k-'0'; } if(m){ x=-x; } } struct MY_WRITER{ char buf[1048576]; int s; int e; MY_WRITER(){ s = 0; e = 1048576; } ~MY_WRITER(){ if(s){ fwrite_unlocked(buf, 1, s, stdout); } } } ; MY_WRITER MY_WRITER_VAR; void my_putchar_unlocked(int a){ if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){ fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout); MY_WRITER_VAR.s = 0; } MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a; } inline void wt_L(char a){ my_putchar_unlocked(a); } inline void wt_L(long long x){ int s=0; int 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){ my_putchar_unlocked('-'); } while(s--){ my_putchar_unlocked(f[s]+'0'); } } struct graph{ int N; int*es; int**edge; void setEdge(int N__, int M, int A[], int B[], void **mem = &wmem){ int i; N = N__; walloc1d(&es, N, mem); walloc1d(&edge, N, mem); for(i=(0);i<(N);i++){ es[i] = 0; } for(i=(0);i<(M);i++){ es[A[i]]++; es[B[i]]++; } for(i=(0);i<(N);i++){ walloc1d(&edge[i], es[i], mem); } for(i=(0);i<(N);i++){ es[i] = 0; } for(i=(0);i<(M);i++){ edge[A[i]][es[A[i]]++] = B[i]; edge[B[i]][es[B[i]]++] = A[i]; } } void SubTreeSize(int root, int res[], void *mem = wmem){ int i; int j; int k; int m; int*q; int qs = 0; int qe = 1; walloc1d(&q,N,&mem); for(i=(0);i<(N);i++){ res[i] = -1; } res[root] = 0; q[0] = root; while(qs < qe){ i = q[qs++]; for(j=(0);j<(es[i]);j++){ k = edge[i][j]; if(res[k]==0){ continue; } res[k] = 0; q[qe++] = k; } } for(m=(N)-1;m>=(0);m--){ i = q[m]; res[i] = 1; for(j=(0);j<(es[i]);j++){ k = edge[i][j]; res[i] += res[k]; } } } } ; int N; int Q; int A[100000]; int B[100000]; int P; int X; graph g; int sz[100000]; int main(){ int e98WHCEY; wmem = memarr; long long res = 0; rd(N); rd(Q); { int Lj4PdHRW; for(Lj4PdHRW=(0);Lj4PdHRW<(N-1);Lj4PdHRW++){ rd(A[Lj4PdHRW]);A[Lj4PdHRW] += (-1); rd(B[Lj4PdHRW]);B[Lj4PdHRW] += (-1); } } g.setEdge(N,N-1,A,B); g.SubTreeSize(0,sz); for(e98WHCEY=(0);e98WHCEY<(Q);e98WHCEY++){ rd(P);P += (-1); rd(X); res += (long long) sz[P] * X; wt_L(res); wt_L('\n'); } return 0; } // cLay version 20210717-1 [beta] // --- original code --- // int N, Q, A[1d5], B[], P, X; // graph g; // int sz[]; // { // ll res = 0; // rd(N,Q,(A--,B--)(N-1)); // g.setEdge(N,N-1,A,B); // g.SubTreeSize(0,sz); // rep(Q){ // rd(P--,X); // res += (ll) sz[P] * X; // wt(res); // } // }