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有谁帮我看一下?WA#include <iostream> using namespace std; int stackx[20000],stacky[20000]; int cost[200][200]; int main(int argc, char* argv[]) { short n,m,k; int a[105],b[105],c[105]; while(scanf("%d%d%d",&n,&m,&k)) { if(n==0&&m==0&&k==0) break; for(int i=0;i<k;i++) scanf("%d%d%d",&a[i],&b[i],&c[i]); for(i=0;i<200;i++) for(int j=0;j<200;j++) cost[i][j]=0; int qh=0,qe=1; stackx[qh]=0; stacky[qh]=0; while(qh<qe) { for(i=0;i<k;i++) { int x=stackx[qh]+a[i]; int y=stacky[qh]+b[i]; if(x>=0&&y>=0&&x<=n&&y<=m&&(cost[x][y]==0||cost[stackx[qh]][stacky[qh]]+c[i]<cost[x][y])) { stackx[qe]=x; stacky[qe]=y; qe++; cost[x][y]=cost[stackx[qh]][stacky[qh]]+c[i]; } } qh++; } if(cost[n][m]==0) printf("-1\n"); else printf("%d\n",cost[n][m]); } return 0; } Followed by:
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