2774: 计算三角形面积（把公式记错了）
```cpp#include#includeintmain(){doublep;doubleS;doublea,b,c;doublex1,x2,x3,y1,y2,y3;scanf("%lf%lf%lf%lf%lf%lf",&x1,&y1,&x2,
题解列表
我写比较简单getline(cin,s)运用一下就行了！1204: 大小写转换
##1204:大小写转换####一如既往的秒杀题，就是这个优质题解到底怎么申请啊！我想要优质题解:tw-1f367:```cpp#includeusingnamespacestd;intmain(){strings;while(getline(cin,
1197: 发工资咯
```cpp#includeusingnamespacestd;intDno[6]={100,50,10,5,2,1};intsum(intx){inty=0,res=0;while(x>0){res+=x/Dno[y];x%=Dno[y++];}returnres;}intmain(){intn;w
1196: 去掉空格
```cpp#include#includeusingnamespacestd;intmain(){stringstr,temp;while(getline(cin,str)){stringstreamss;sstemp)cout
1195: 去掉双斜杠注释
摘要：```cpp
#include
using namespace std;
int main()
{
string str1="//",str;
int k;
wh……
1193: 半数集问题
```cpp#include#includeusingnamespacestd;inta[1005];intf(intn){if(a[n])returna[n];a[n]=1;for(inti=1;i>n){memset(a,0,sizeof(a));a[1]=1;cout
1192: 十->二进制转换
```cpp#include#includeusingnamespacestd;intn,flag=0;vectorarr;voidBinaryChange(intn){for(inti=31;i>=0;i--)arr.push_back((n>>i)&1);return;}intmain(){whi