結果

問題 No.1365 [Cherry 1st Tune] Whose Fault?
コンテスト
ユーザー Nachia
提出日時 2021-02-06 17:30:49
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 498 ms / 2,000 ms
コード長 456 bytes
コンパイル時間 2,499 ms
コンパイル使用メモリ 191,828 KB
最終ジャッジ日時 2025-01-18 13:38:02
ジャッジサーバーID
（参考情報） 		judge1 / judge3
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ファイルパターン 結果
other AC * 46
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コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:3:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    3 | #define S(a)scanf("%d",&a);
      |             ~~~~~^~~~~~~~~
main.cpp:6:146: note: in expansion of macro ‘S’
    6 | I N,A[1<<17],V[1<<17],u,v,g;double P[1<<17],E=0;I Z(I a){return V[a]+1?V[a]=Z(V[a]):a;}I U(I a,I b){a=Z(a);b=Z(b);return a^b?V[b]=a:-1;}I main(){S(N)R S(A[i])R{S(u)A[i]-=u;V[i]=-1;}R{S(u)P[i]=1./u;E+=f(i);}S(N)R{S(u)S(v)u=Z(u-1);v=Z(v-1);if(u^v){g=U(u,v);E-=f(u)+f(v);A[g]+=A[u+=v-g];P[g]+=P[u];E+=f(g);}printf("%f\n",E);}return 0;}
      |                                                                                                                                                  ^
main.cpp:3:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    3 | #define S(a)scanf("%d",&a);
      |             ~~~~~^~~~~~~~~
main.cpp:6:152: note: in expansion of macro ‘S’
    6 | I N,A[1<<17],V[1<<17],u,v,g;double P[1<<17],E=0;I Z(I a){return V[a]+1?V[a]=Z(V[a]):a;}I U(I a,I b){a=Z(a);b=Z(b);return a^b?V[b]=a:-1;}I main(){S(N)R S(A[i])R{S(u)A[i]-=u;V[i]=-1;}R{S(u)P[i]=1./u;E+=f(i);}S(N)R{S(u)S(v)u=Z(u-1);v=Z(v-1);if(u^v){g=U(u,v);E-=f(u)+f(v);A[g]+=A[u+=v-g];P[g]+=P[u];E+=f(g);}printf("%f\n",E);}return 0;}
      |                                                                                                                                                        ^
main.cpp:3:18: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    3 | #define S(a)scanf("%d",&a);
      |             ~~~~~^~~~~~~~~
main.cpp:6:161: note: in expansion of macro ‘S’
    6 | I N,A[1<<17],V[1<<17],u,v,g;double P[1<<17],E=0;I Z(I a){return V[a]+1?V[a]=Z(V[a]):a;}I U(I a,I b){a=Z(a);b=Z(b);return a^b?V[b]=a:-1;

ソースコード

diff # 

#include<bits/stdc++.h>
#define I int
#define S(a)scanf("%d",&a);
#define R for(I i=0;i<(N);i++)
#define f(i)A[i]*A[i]/P[i]
I N,A[1<<17],V[1<<17],u,v,g;double P[1<<17],E=0;I Z(I a){return V[a]+1?V[a]=Z(V[a]):a;}I U(I a,I b){a=Z(a);b=Z(b);return a^b?V[b]=a:-1;}I main(){S(N)R S(A[i])R{S(u)A[i]-=u;V[i]=-1;}R{S(u)P[i]=1./u;E+=f(i);}S(N)R{S(u)S(v)u=Z(u-1);v=Z(v-1);if(u^v){g=U(u,v);E-=f(u)+f(v);A[g]+=A[u+=v-g];P[g]+=P[u];E+=f(g);}printf("%f\n",E);}return 0;}
0