要加一个ceil向上取整~~虽然也是错的~~
by wyxrl @ 2024-03-04 21:07:08
```
#include<bits/stdc++.h>
using namespace std;
int cnt=8*60+24*60,s,u,num,fen,shi;
int main(){
cin>>s>>u;
num=ceil(s/u)+10;//ceil的意思是向上取整，因为C++默认向下取整;
cnt=cnt-num;
if(cnt>=24*60){
cnt-=24*60;
shi=cnt/60;
fen=cnt%60;
}
if(shi<10){
if(fen%60==0){
cout<<"0"<<shi<<":"<<fen;
}
else{
cout<<"0"<<shi<<":"<<fen-1;
}
}
else{
if(fen%60==0){
cout<<shi<<":"<<fen;
}
else{
cout<<shi<<":"<<fen-1;
}
}
return 0;
}
```
经过朋友指导变成了这样
by zzh0118 @ 2024-03-04 21:11:49
@[wyxrl](/user/1266960)
by zzh0118 @ 2024-03-04 21:12:36
还是50分
by zzh0118 @ 2024-03-04 21:14:32
@[lutaoquan2012](/user/952033)
by zzh0118 @ 2024-03-04 21:15:02
@[zzh0118](/user/1016479) 来喽
by lutaoquan2012 @ 2024-03-04 21:21:13
```cpp
#include<bits/stdc++.h>
using namespace std;
int cnt=8*60+24*60,s,u,num,fen,shi;
int main(){
cin>>s>>u;
num=ceil(s/u)+10;//ceil的意思是向上取整，因为C++默认向下取整;
cnt=cnt-num;
if(cnt>=24*60){
cnt-=24*60;
shi=cnt/60;
fen=cnt%60;
}
if(shi<10){
if(fen<10){
cout<<"0"<<shi<<":0"<<fen;
}
else{
cout<<"0"<<shi<<":"<<fen;
}
}
else{
if(fen<10){
cout<<shi<<":0"<<fen;
}
else{
cout<<shi<<":"<<fen;
}
}
return 0;
}
```
第三稿
by zzh0118 @ 2024-03-04 21:25:48
```cpp
#include<bits/stdc++.h>
using namespace std;
int cnt=8*60+24*60,s,u,num,fen,shi;
int main(){
cin>>s>>u;
num=ceil(s/u)+10;//ceil的意思是向上取整，因为C++默认向下取整;
cnt=cnt-num;
if(cnt>=24*60){
cnt-=24*60;
shi=cnt/60;
fen=cnt%60;
}
if(shi<10){
if(fen<10){
if(fen%60==0){
cout<<"0"<<shi<<":0"<<fen;
}
else{
cout<<"0"<<shi<<":0"<<fen-1;
}
}
else{
if(fen%60==0){
cout<<"0"<<shi<<":"<<fen;
}
else{
cout<<"0"<<shi<<":"<<fen-1;
}
}
}
else{
if(fen<10){
if(fen%60==0){
cout<<shi<<":0"<<fen;
}
else{
cout<<shi<<":0"<<fen-1;
}
}
else{
if(fen%60==0){
cout<<shi<<":"<<fen;
}
else{
cout<<shi<<":"<<fen-1;
}
}
}
return 0;
}
```
现在70了
by zzh0118 @ 2024-03-04 21:30:54
```cpp
#include<bits/stdc++.h>
using namespace std;
int cnt=8*60+24*60,s,u,num,fen,shi;
int main(){
cin>>s>>u;
num=ceil(s/u)+10;//ceil的意思是向上取整，因为C++默认向下取整;
cnt=cnt-num;
if(cnt>=24*60){
cnt-=24*60;
}
shi=cnt/60;
fen=cnt%60;
if(shi<10){
if(fen<10){
if(fen%60==0){
cout<<"0"<<shi<<":0"<<fen;
}
else{
cout<<"0"<<shi<<":0"<<fen-1;
}
}
else{
if(fen%60==0){
cout<<"0"<<shi<<":"<<fen;
}
else{
cout<<"0"<<shi<<":"<<fen-1;
}
}
}
else{
if(fen<10){
if(fen%60==0){
cout<<shi<<":0"<<fen;
}
else{
cout<<shi<<":0"<<fen-1;
}
}
else{
if(fen%60==0){
cout<<shi<<":"<<fen;
}
else{
cout<<shi<<":"<<fen-1;
}
}
}
return 0;
}
```
第四稿90分了
by zzh0118 @ 2024-03-04 21:35:13
@[zzh0118](/user/1016479) 我来了
by 2345A @ 2024-03-05 10:18:40