結果
問題 | No.421 しろくろチョコレート |
ユーザー | akakimidori |
提出日時 | 2019-03-20 01:14:09 |
言語 | C (gcc 12.3.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 3,674 bytes |
コンパイル時間 | 737 ms |
コンパイル使用メモリ | 32,128 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-23 07:23:01 |
合計ジャッジ時間 | 2,000 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 1 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,940 KB |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 1 ms
6,940 KB |
testcase_09 | AC | 1 ms
6,944 KB |
testcase_10 | AC | 1 ms
6,944 KB |
testcase_11 | AC | 1 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 1 ms
6,944 KB |
testcase_14 | AC | 1 ms
6,940 KB |
testcase_15 | AC | 1 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,944 KB |
testcase_17 | AC | 2 ms
6,944 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 1 ms
6,940 KB |
testcase_20 | AC | 1 ms
6,944 KB |
testcase_21 | AC | 2 ms
6,940 KB |
testcase_22 | AC | 1 ms
6,940 KB |
testcase_23 | AC | 1 ms
6,940 KB |
testcase_24 | AC | 1 ms
6,940 KB |
testcase_25 | AC | 1 ms
6,940 KB |
testcase_26 | AC | 1 ms
6,940 KB |
testcase_27 | AC | 1 ms
6,944 KB |
testcase_28 | AC | 1 ms
6,944 KB |
testcase_29 | AC | 1 ms
6,940 KB |
testcase_30 | AC | 1 ms
6,940 KB |
testcase_31 | AC | 1 ms
6,944 KB |
testcase_32 | AC | 1 ms
6,940 KB |
testcase_33 | AC | 1 ms
6,944 KB |
testcase_34 | AC | 1 ms
6,940 KB |
testcase_35 | AC | 1 ms
6,944 KB |
testcase_36 | AC | 1 ms
6,944 KB |
testcase_37 | AC | 2 ms
6,944 KB |
testcase_38 | AC | 3 ms
6,940 KB |
testcase_39 | AC | 1 ms
6,940 KB |
testcase_40 | AC | 2 ms
6,940 KB |
testcase_41 | AC | 1 ms
6,940 KB |
testcase_42 | AC | 1 ms
6,940 KB |
testcase_43 | AC | 1 ms
6,944 KB |
testcase_44 | AC | 2 ms
6,944 KB |
testcase_45 | AC | 1 ms
6,940 KB |
testcase_46 | AC | 1 ms
6,940 KB |
testcase_47 | AC | 2 ms
6,940 KB |
testcase_48 | AC | 1 ms
6,944 KB |
testcase_49 | AC | 1 ms
6,940 KB |
testcase_50 | AC | 1 ms
6,944 KB |
testcase_51 | AC | 2 ms
6,944 KB |
testcase_52 | AC | 1 ms
6,944 KB |
testcase_53 | AC | 1 ms
6,944 KB |
testcase_54 | AC | 1 ms
6,940 KB |
testcase_55 | AC | 1 ms
6,940 KB |
testcase_56 | AC | 1 ms
6,944 KB |
testcase_57 | AC | 1 ms
6,940 KB |
testcase_58 | AC | 1 ms
6,940 KB |
testcase_59 | AC | 1 ms
6,940 KB |
testcase_60 | AC | 3 ms
6,940 KB |
testcase_61 | AC | 2 ms
6,944 KB |
testcase_62 | AC | 1 ms
6,940 KB |
testcase_63 | AC | 1 ms
6,944 KB |
testcase_64 | AC | 1 ms
6,944 KB |
ソースコード
#include<stdio.h> #include<stdlib.h> #include<string.h> typedef int flow_type; const flow_type flow_inf=10000; typedef struct flow_edge{ int vertex; int next; flow_type capacity; } flow_edge; typedef struct maxFlowGraph{ flow_edge *edge; int *start; int vertex_num; int pointer; int edge_length; } graph; graph* newGraph(const int vertex_num){ graph *g=(graph *)calloc(1,sizeof(graph)); g->vertex_num=vertex_num; const int initial_length=4; g->edge=(flow_edge *)calloc(initial_length,sizeof(flow_edge)); g->start=(int *)calloc(vertex_num,sizeof(int)); g->pointer=0; g->edge_length=initial_length; for(int i=0;i<vertex_num;i++) g->start[i]=-1; return g; } void freeGraph(graph *g){ free(g->edge); free(g->start); free(g); } void addEdge(graph *g,int from,int to,flow_type capa){ if(g->pointer==g->edge_length){ g->edge_length*=2; g->edge=(flow_edge *)realloc(g->edge,sizeof(flow_edge)*g->edge_length); } int p=g->pointer; g->edge[p]=(flow_edge){to,g->start[from],capa}; g->start[from]=p; g->edge[p+1]=(flow_edge){from,g->start[to],0}; g->start[to]=p+1; g->pointer+=2; } flow_type dinic_dfs(int v,graph *g,int dst,int *level,int *iter,flow_type e){ if(v==dst) return e; flow_type sum=0; for(int p=iter[v];p!=-1 && e>0;p=g->edge[p].next,iter[v]=p){ int u=g->edge[p].vertex; flow_type capa=g->edge[p].capacity; if(level[u]<=level[v] || capa<=0) continue; flow_type f=dinic_dfs(u,g,dst,level,iter,capa<e?capa:e); if(f>0){ g->edge[p].capacity-=f; g->edge[p^1].capacity+=f; sum+=f; e-=f; } } return sum; } flow_type dinic(const graph *input_graph,const int src,const int dst){ const int vertex_num=input_graph->vertex_num; const int edge_num=input_graph->pointer; graph *g=(graph *)calloc(1,sizeof(graph)); g->edge=(flow_edge *)malloc(sizeof(flow_edge)*edge_num); g->start=(int *)malloc(sizeof(int)*vertex_num); memcpy(g->edge,input_graph->edge,sizeof(flow_edge)*edge_num); memcpy(g->start,input_graph->start,sizeof(int)*vertex_num); int *level=(int *)calloc(vertex_num,sizeof(int)); int *queue=(int *)calloc(vertex_num,sizeof(int)); int *iter=(int *)calloc(vertex_num,sizeof(int)); flow_type flow=0; while(1){ memset(level,0,sizeof(int)*vertex_num); int front=0,last=0; level[src]=1; queue[last++]=src; while(front<last && level[dst]==0){ const int v=queue[front++]; for(int p=g->start[v];p!=-1;p=g->edge[p].next){ int u=g->edge[p].vertex; if(g->edge[p].capacity>0 && level[u]==0){ level[u]=level[v]+1; queue[last++]=u; } } } if(level[dst]==0) break; memcpy(iter,g->start,sizeof(int)*vertex_num); while(1){ flow_type f=dinic_dfs(src,g,dst,level,iter,flow_inf); if(f<=0) break; flow+=f; } } freeGraph(g); free(level); free(queue); free(iter); return flow; } #define MIN(a,b) ((a)<(b)?(a):(b)) void run(void){ int n,m; scanf("%d%d",&n,&m); char *s=(char *)calloc(n*m+1,sizeof(char)); int i,j; for(i=0;i<n;i++) scanf("%s",s+i*m); graph *g=newGraph(n*m+2); int w=0,b=0; int src=n*m; int dst=n*m+1; for(i=0;i<n;i++){ for(j=0;j<m;j++){ if(s[i*m+j]=='.') continue; if((i+j)&1){ b++; addEdge(g,i*m+j,dst,1); continue; } w++; addEdge(g,src,i*m+j,1); int d[]={-1,0,1,0}; for(int k=0;k<4;k++){ int x=i+d[k]; int y=j+d[k^1]; if(0<=x && x<n && 0<=y && y<m && s[x*m+y]!='.'){ addEdge(g,i*m+j,x*m+y,1); } } } } int c=dinic(g,src,dst); int d=MIN(w-c,b-c); int e=w+b-2*c-2*d; printf("%d\n",100*c+10*d+e); } int main(void){ run(); return 0; }