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Re:第一次写匹配问题的程序,用的是bbs上的那个模板,不知主函数哪里错了,哪位高手看一下.In Reply To:第一次写匹配问题的程序,用的是bbs上的那个模板,不知主函数哪里错了,哪位高手看一下. Posted by:8600 at 2006-03-02 16:27:57 > #include<stdio.h> > #define MAX 130 > > > int Bipartite(bool vc [][MAX],int nv1,int nv2) { > int i, j, x, n; > int q[MAX], prev[MAX], qs, qe; > int vm1[MAX], vm2[MAX]; > > n = 0; > for( i = 0; i < nv1; i++ ) vm1[i] = -1; > for( i = 0; i < nv2; i++ ) vm2[i] = -1; > for( i = 0; i < nv1; i++ ) { > for( j = 0; j < nv2; j++ ) prev[j] = -2; > qs = qe = 0; > for( j = 0; j < nv2; j++ ) if( vc[i][j] ) { > prev[j] = -1; > q[qe++] = j; > } > while( qs < qe ) { > x = q[qs]; > if( vm2[x] == -1 ) break; > qs++; > for( j = 0; j < nv2; j++ ) if( prev[j] == -2 && vc[vm2[x]][j] ) { > prev[j] = x; > q[qe++] = j; > } > } > if( qs == qe ) continue; > while( prev[x] > -1 ) { > vm1[vm2[prev[x]]] = x; > vm2[x] = vm2[prev[x]]; > x = prev[x]; > } > vm2[x] = i; > vm1[i] = x; > n++; > } > return n; > } > > > int main() > { > bool vc[MAX][MAX]={false}; > int ca,i,a,b,x,y; > scanf("%d",&ca); > while(ca--) > { > scanf("%d%d",&a,&b); > for(i=1;i<=b;i++) > { > scanf("%d%d",&x,&y); > vc[x-1][y-1]=true;//次两点存在联系,值变为1 > } > printf("%d\n",a-Bipartite(vc,a,a));//总的点数减去最大匹配数 > } > return 0; > } > > > Followed by:
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