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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #506274 | #6422. Evil Coordinate | chanal | WA | 27ms | 3744kb | C++14 | 4.8kb | 2024-08-05 16:21:12 | 2024-08-05 16:21:13 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
void solve() {
int mx,my;
cin>>mx>>my;
string str;
cin>>str;
map<char,int> mp;
for(int i=0; i<(int)str.size(); i++) {
mp[str[i]]++;//统计各个方向移动的指令数目
}
int end_x=mp['R']-mp['L'];//不要取绝对值就是算最后的坐标
int end_y=mp['U']-mp['D'];
if((mx==0&&my==0)||(end_x==mx&&end_y==my)) {
cout<<"Impossible"<<endl;
return;
}
// -1 0
// DUDDLLRDU
//endx=-1
//endy-2
if(my==0) { //地雷在x轴上
//最后落在x轴上,在这种情况下必然不会出现mx=0,那么就应该讨论mx和endx的关系以及end_y之间的关系
if(mp['U']==0&&mp['D']==0) { //如果都等于0这种情况说明只能左右移动那么只需要反方向移动即可
if(mx>0&&end_x>mx) {
cout<<"Impossible"<<endl;
return;
} else if(mx<0&&end_x<mx) {
cout<<"Impossible"<<endl;
return;
} else {
if(mx>0) {
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
cout<<endl;
return;
}else{
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
cout<<endl;
return;
}
}
}else if(end_y!=my){
for(int i=0; i<mp['L']; i++) {
cout<<'U';
}
for(int i=0; i<mp['U']; i++) {
cout<<'D';
}
for(int i=0; i<mp['D']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
cout<<endl;
return;
}
else if((mp['U']!=0)&&end_x!=mx) {
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
cout<<endl;
return;
} else if(mp['D']!=0&&end_x!=mx) {
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
cout<<endl;
return;
} else {
cout<<"Impossible"<<endl;
return;
}
} else if(mx==0) { //如果地雷在y轴上
if(mp['L']==0&&mp['R']==0) { //如果都等于0这种情况说明只能左右移动那么只需要反方向移动即可
if(my>0&&end_y>my) {
cout<<"Impossible"<<endl;
return;
} else if(my<0&&end_y<my) {
cout<<"Impossible"<<endl;
return;
} else {
if(my>0){
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
cout<<endl;
return;
}else{
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
cout<<endl;
return;
}
}
}else if(end_x!=mx){
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['U']; i++) {
cout<<'R';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['R']; i++) {
cout<<'U';
}
cout<<endl;
return;
}
else if((mp['L']!=0)&&end_x!=mx) {
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
cout<<endl;
return;
} else if(mp['R']!=0&&end_x!=mx) {
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
cout<<endl;
return;
} else {
cout<<"Impossible"<<endl;
return;
}
} else if(end_x!=mx&&end_y!=my) { //如果两个最终的结果都不跟坐标相同
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
cout<<endl;
return;
} else if(end_x!=mx&&end_y==my) {//若x不相同,但是y的坐标相同的话__地雷的点不在坐标轴上,但是在
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
cout<<endl;
return;
} else if(end_y!=my&&end_x==mx) { //如果y最后不相同但是x相同,
for(int i=0; i<mp['U']; i++) {
cout<<'U';
}
for(int i=0; i<mp['D']; i++) {
cout<<'D';
}
for(int i=0; i<mp['L']; i++) {
cout<<'L';
}
for(int i=0; i<mp['R']; i++) {
cout<<'R';
}
cout<<endl;
return;
}
}
int main() {
int t;
cin>>t;
while(t--) {
solve();
}
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3592kb
input:
5 1 1 RURULLD 0 5 UUU 0 3 UUU 0 2 UUU 0 0 UUU
output:
LLRRUUD UUU Impossible Impossible Impossible
result:
ok 5 cases
Test #2:
score: -100
Wrong Answer
time: 27ms
memory: 3744kb
input:
11109 6 0 RUDUDR 2 0 URU 0 0 UDRU 0 0 R -1 1 LDUUDDRUUL -1 5 RRUUUDUUU -8 4 RRDRLDR 2 0 UD 0 0 UUDD 3 -2 LDDLLLRR 3 -2 LDRURLDD 1 0 RRL -1 0 DUDDLLRDU -4 0 LL -1 -1 DLRLDLUDUR 1 4 URDULUR 0 0 DDUUDUDDDD 0 2 UU 1 0 RRULD 0 -2 LDLRLLDRRL 0 1 RLRLLRLUR -3 0 RL 0 0 D 0 0 L 0 0 DDLRRUDRUD 0 0 DULU 2 0 RR...
output:
UURRDD DDR Impossible Impossible Impossible RRUUUUUUD LRRRRDD UD Impossible LLLLRRDD LLRRUDDD Impossible UUDDLLLLR LL Impossible UUUDLRR Impossible Impossible Impossible LLLLLDDUUU Impossible RL Impossible Impossible Impossible Impossible Impossible LLLRRUUUUU LLLUD Impossible UUULDDD UUDDRR Impossi...
result:
wrong answer case 2, participant's output is not a permutation of the input