uva512 SpreadsheetTracking

简单题，算法入门书上的例题，代码如下：

#include <iostream>
#include <cstring>
#include <cstdio>
using namespace std;
#define maxd 100
#define BIG 10000

int  r,c,n,d[maxd][maxd],d2[maxd][maxd],ans[maxd][maxd],cols[maxd];

void copy(char type,int p,int q)
{
    if(type=='R'){
        for(int i = 1;i<=c;i++)
            d[p][i]=d2[q][i];
    }else {
        for(int i=1;i<=r;i++)
            d[i][p]=d2[i][q];
    }
}

void del(char type)
{
    memcpy(d2,d,sizeof(d));
    int cnt = type == 'R' ? r:c,cnt2=0;
    for(int i = 1;i <= cnt; i++){
        if(!cols[i])copy(type,++cnt2,i);
    }
    if(type=='R')r=cnt2;else c=cnt2;
}

void ins(char type){
    memcpy(d2,d,sizeof(d));
    int cnt = type == 'R'?r:c,cnt2=0;
    for(int i = 1; i <= cnt; i++){
        if(cols[i])copy(type, ++cnt2, 0);
        copy(type, ++cnt2, i);
    }
    if(type == 'R')r = cnt2; else c = cnt2;
}


int main() {
    int r1, c1, r2, c2, q, kase = 0;
    char cmd[10];
    memset(d, 0, sizeof(d));
    while(cin>>r>>c>>n&&r){
        int r0 = r, c0 = c;
        for(int i = 1; i <= r; i++)
            for(int j = 1; j <= c; j++)
                d[i][j] = i*BIG + j;
        while(n--){
            cin>>cmd;
            if(cmd[0] == 'E'){
                cin>>r1>>c1>>r2>>c2;
                int t = d[r1][c1];
                d[r1][c1] = d[r2][c2];
                d[r2][c2] = t;
            }else {
                int a, x;
                cin>>a;
                memset(cols, 0, sizeof(cols));
                for(int i = 0; i < a; i++){
                    cin>>x;
                    cols[x] = 1;
                }
                if(cmd[0] == 'D') del(cmd[1]);
                else ins(cmd[1]);
            }
        }
        memset(ans, 0, sizeof(ans));
        for(int i = 1; i <= r; i++)
            for(int j = 1; j <= c; j++){
                ans[d[i][j]/BIG][d[i][j]%BIG] = i*BIG + j;
            }
        if(kase > 0)cout<<endl;
        cout<<"Spreadsheet #"<<++kase<<endl;
        cin>>q;
        while(q--){
            cin>>r1>>c1;
            cout<<"Cell data in ("<<r1<<","<<c1<<") ";
            if(ans[r1][c1] == 0)cout<<"GONE"<<endl;
            else cout<<"moved to ("<<ans[r1][c1]/BIG<<","<<ans[r1][c1]%BIG<<")\n";
        }
    }
    return 0;
}