UVA 1585
这题我居然wa了3次,看来我真的好渣,想了想我的是当只有一个O的时候越界了,果然还是代码风格太差,需要改进!!
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int INF=0x3f3f3f3f;
const ll LINF=0x3f3f3f3f3f3f3f3f;
#define PI(A) cout<<(A)<<endl
#define SI(N) cin>>(N)
#define SII(N,M) cin>>(N)>>(M)
#define cle(a,val) memset(a,(val),sizeof(a))
#define rep(i,b) for(int i=0;i<(b);i++)
#define Rep(i,a,b) for(int i=(a);i<=(b);i++)
#define reRep(i,a,b) for(int i=(a);i>=(b);i--)
#define dbg(x) cout <<#x<<" = "<<(x)<<endl
#define PIar(a,n) rep(i,n)cout<<a[i]<<" ";cout<<endl;
#define PIarr(a,n,m) rep(aa,n){rep(bb, m)cout<<a[aa][bb]<<" ";cout<<endl;}
const double EPS= 1e-9 ;
/* ///////////////////////// C o d i n g S p a c e ///////////////////////// */
const int MAXN= 80 + 9 ;
int a[MAXN];
string s;
int main()
{
SI(o);
while(o--)
{
cle(a,0);
SI(s);
int l=s.size();
//这块要初始化0,否则会越界
a[0]=(s[0]=='O');
Rep(i,1,l-1)
{
if (s[i]=='O')
{
if (!a[i-1])
a[i]++;
else a[i]=a[i-1]+1;
}
else
{
a[i]=0;
}
}
ll sum=0;
rep(i,l) sum+=a[i];
PI(sum);
}
return 0;
}
UVA 1586
这题告诉了我不可能全用cin,有的时候还是必须要用scanf的,还有函数isalpha(判断是否为英文) 和 isdigit(判断是否为数字) 能使代码更简洁,最后让你输出%.3f 就不能输出%f,那样会WA的。
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int INF=0x3f3f3f3f;
const ll LINF=0x3f3f3f3f3f3f3f3f;
#define PI(A) cout<<(A)<<endl
#define SI(N) cin>>(N)
#define SII(N,M) cin>>(N)>>(M)
#define cle(a,val) memset(a,(val),sizeof(a))
#define rep(i,b) for(int i=0;i<(b);i++)
#define Rep(i,a,b) for(int i=(a);i<=(b);i++)
#define reRep(i,a,b) for(int i=(a);i>=(b);i--)
#define dbg(x) cout <<#x<<" = "<<(x)<<endl
#define PIar(a,n) rep(i,n)cout<<a[i]<<" ";cout<<endl;
#define PIarr(a,n,m) rep(aa,n){rep(bb, m)cout<<a[aa][bb]<<" ";cout<<endl;}
const double EPS= 1e-9 ;
/* ///////////////////////// C o d i n g S p a c e ///////////////////////// */
const int MAXN= 80 + 9 ;
int n;
string s;
bool us[MAXN];
int main()
{
scanf("%d%*c",&n);
while(n--)
{
cle(us,0);
getline(cin,s);
int l=s.size();
map<char,int>mci;
rep(i,l)
{
if (isalpha(s[i]))
{
mci[s[i]]++;
us[i]=1;
}
}
rep(i,l)
{
if (isdigit(s[i]))
{
int sum=0;
if (i+1<l&&isdigit(s[i+1]))
{
sum+=s[i+1]-'0';
sum+=(s[i]-'0')*10;
}
else
sum+=s[i]-'0';
mci[s[i-1]]+=sum-1;
}
}
double ans=12.01*mci['C']+1.008*mci['H']+16.00*mci['O']+14.01*mci['N'];
printf("%.3f\n",ans);
}
return 0;
}
UVA 1225
数据范围小,纯模拟可A,但当时我在想,要用数学公式,搞了半天也没弄出来,坑 = =
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int INF=0x3f3f3f3f;
const ll LINF=0x3f3f3f3f3f3f3f3f;
#define cle(a,val) memset(a,(val),sizeof(a))
#define rep(i,b) for(int i=0;i<(b);i++)
#define dbg(x) cout <<#x<<" = "<<(x)<<endl
#define PIar(a,n) rep(i,n)cout<<a[i]<<" ";cout<<endl;
#define PIarr(a,n,m) rep(aa,n){rep(bb, m)cout<<a[aa][bb]<<" ";cout<<endl;}
const double EPS= 1e-9 ;
/* ///////////////////////// C o d i n g S p a c e ///////////////////////// */
map<char,int>mci;
char s[10];
int sol(int n)
{
int k=0;
while(n>0)
{
s[k++]=n%10+'0';
n/=10;
}
return k;
}
char biao[]={'0','1','2','3','4','5','6','7','8','9'};
int main()
{
int o,n;
scanf("%d",&o);
while(o--)
{
mci.clear();
scanf("%d",&n);
for(int i=1;i<=n;i++)
{
cle(s,0);
int k=sol(i);
for(int j=0;j<k;j++)
{
mci[s[j]]++;
}
}
for(int i=0;i<10;i++)
{
printf("%d%c",mci[biao[i]],i==9?'\n':' ');
}
}
return 0;
}
UVA 455
KMP大法好(PS:n-Next[n]不一定是最小循环节,只有当n%(n-Next[n])==0的时候,n-Next[n]才是最小循环节,当n-Next[n]!=0的时候,最小循环节是n >_< 又坑我半小时)
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int INF=0x3f3f3f3f;
const ll LINF=0x3f3f3f3f3f3f3f3f;
#define rep(i,b) for(int i=0;i<(b);i++)
#define cle(a,val) memset(a,(val),sizeof(a))
#define dbg(x) cout <<#x<<" = "<<(x)<<endl
#define PIar(a,n) rep(i,n)cout<<a[i]<<" ";cout<<endl;
#define PIarr(a,n,m) rep(aa,n){rep(bb, m)cout<<a[aa][bb]<<" ";cout<<endl;}
const double EPS= 1e-9 ;
/* ///////////////////////// C o d i n g S p a c e ///////////////////////// */
const int MAXN= 100 + 9 ;
int Next[MAXN];
int len;
string x;
void kmp_pre()
{
int i,j;
j=Next[0]=-1;
i=0;
while(i<len)
{
while(-1!=j&&x[i]!=x[j])j=Next[j];
Next[++i]=++j;
}
}
int main()
{
int o;
cin>>o;
while(o--)
{
cin>>x;
len=x.size();
kmp_pre();
int d=len-Next[len];
if (len%d==0)
printf("%d\n",d);
else printf("%d\n",len);
if (o!=0) puts("");
}
return 0;
}
UVA 227
就是简单的模拟而已,但输入真的好特么麻烦 (⊙﹏⊙)
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int INF=0x3f3f3f3f;
const ll LINF=0x3f3f3f3f3f3f3f3f;
#define rep(i,b) for(int i=0;i<(b);i++)
#define cle(a,val) memset(a,(val),sizeof(a))
#define dbg(x) cout <<#x<<" = "<<(x)<<endl
#define PIar(a,n) rep(i,n)cout<<a[i]<<" ";cout<<endl;
#define PIarr(a,n,m) rep(aa,n){rep(bb, m)cout<<a[aa][bb]<<" ";cout<<endl;}
const double EPS= 1e-9 ;
/* ///////////////////////// C o d i n g S p a c e ///////////////////////// */
const int MAXN= 10000 + 9 ;
char a[10][10];
char ope[MAXN];
int k=1;
int main()
{
while(1)
{
gets(a[0]);
if (a[0][0]=='Z') break;
for(int i=1;i<5;i++)
{
gets(a[i]);
}
int cnt=0;
while(scanf("%c",&ope[cnt])&&ope[cnt++]!='0') ;
getchar();
int x,y;
rep(i,5)
rep(j,5)
if (a[i][j]==' ')
x=i,y=j;
bool out=0;
for(int i=0;i<cnt;i++)
{
if (ope[i]=='A'){
if (x-1>=0)
swap(a[x][y],a[x-1][y]),x-=1;
else out=1;
}
if (ope[i]=='B'){
if (x+1<5)
swap(a[x][y],a[x+1][y]),x+=1;
else out=1;
}
if (ope[i]=='L'){
if (y-1>=0)
swap(a[x][y],a[x][y-1]),y-=1;
else out=1;
}
if (ope[i]=='R'){
if (y+1<5)
swap(a[x][y],a[x][y+1]),y+=1;
else out=1;
}
}
if (k!=1)puts("");
printf("Puzzle #%d:\n",k++);
if (out) puts("This puzzle has no final configuration.");
else
{
rep(i,5)
rep(j,5)
printf("%c%c",a[i][j],j==4?'\n':' ');
}
}
return 0;
}
UVA 10340
输出™的打错了,调了20分钟,我去,下把输出就只复制
#include <bits/stdc++.h>
using namespace std;
#define PI(A) cout<<(A)<<endl
#define rep(i,b) for(int i=0;i<(b);i++)
const int MAXN= 100000 + 10000 ;
char s[MAXN],t[MAXN];
int main()
{
while(scanf("%s%s",s,t)!=EOF){
int ls=strlen(s),lt=strlen(t),cnt=0;
rep(i,lt)
if (s[cnt]==t[i]&&cnt<ls) cnt++;
if (cnt==ls) puts("Yes");
else puts("No");
}
return 0;
}
UVA 1587
这题真是坑死我了,不难的题,我却想了3小时,最后还是看别人代码才懂的,他说是长方体,那么正方体就是错的,只要根据长方体定义就好了,先判断6个面是不是两两相等,之后在看3个面是否有3条线相等,也就是是否能拼到一起
#include <bits/stdc++.h>
using namespace std;
struct rec {
int l, w;
} r[6];
bool cmp(rec a, rec b) {
return a.w < b.w || (a.w == b.w && a.l < b.l);
}
int main() {
while(~scanf("%d%d", &r[0].w, &r[0].l)) {
bool ok = 1;
if(r[0].w > r[0].l) swap(r[0].w, r[0].l);
for(int i = 1; i < 6; i++) {
scanf("%d%d", &r[i].w, &r[i].l);
if (r[i].w > r[i].l) swap(r[i].w, r[i].l);
}
sort(r, r + 6, cmp);
for(int i = 0; i < 6; i += 2)
if (r[i].w != r[i + 1].w || r[i].l != r[i + 1].l) ok = 0;
if (r[0].w != r[2].w || r[0].l != r[4].w || r[2].l != r[4].l) ok = 0;
puts(ok ? "POSSIBLE" : "IMPOSSIBLE");
}
return 0;
}