Submission #205309

#	Time	Username	Problem	Language	Result	Execution time	Memory
205309		TadijaSebez	Bowling (BOI15_bow)	C++11	100 / 100	341 ms	1016 KiB

bow

#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int N=11;
const int M=305;
int score[N];
ll dp[M][N][N],tmp[M][N][N];
void Clear(){
	for(int i=0;i<M;++i)
		for(int j=0;j<N;++j)
			for(int k=0;k<N;++k)
				tmp[i][j][k]=dp[i][j][k],dp[i][j][k]=0;
}
void Print(int n){
	for(int i=0;i<M;++i)
		for(int j=0;j<N;++j)
			for(int k=0;k<N;++k)
				if(dp[i][j][k])
					printf("%i %i %i %i %lld\n",n,i,j,k,dp[i][j][k]);
}
void Solve(){
	int n;
	string str;
	scanf("%i",&n);
	cin>>str;
	for(int i=1;i<=n;i++)scanf("%i",&score[i]);
	Clear();
	for(int i=0;i<M;++i)if(i==score[n] || score[n]==-1){
		string now="";now+=str[n*2-2];now+=str[n*2-1];now+=str[n*2];
		//Case 1 xxx
		if((now[0]=='?' || now[0]=='x') && (now[1]=='?' || now[1]=='x') && (now[2]=='?' || now[2]=='x')){
			if(i>=30)dp[i-30][10][10]++;
		}
		//Case 2 xxA
		if((now[0]=='?' || now[0]=='x') && (now[1]=='?' || now[1]=='x')){
			for(int A=0;A<10;++A)if(now[2]=='?' || now[2]=='0'+A){
				if(i>=20+A)dp[i-20-A][10][10]++;
			}
		}
		//Case 3 xA/
		if((now[0]=='?' || now[0]=='x') && (now[2]=='?' || now[2]=='/')){
			for(int A=0;A<10;++A)if(now[1]=='?' || now[1]=='0'+A){
				if(i>=20)dp[i-20][10][A]++;
			}
		}
		//Case 4 xAB
		if(now[0]=='?' || now[0]=='x'){
			for(int A=0;A<10;++A)if(now[1]=='?' || now[1]=='0'+A)
				for(int B=0;B<10-A;++B)if(now[2]=='?' || now[2]=='0'+B){
					if(i>=10+A+B)dp[i-10-A-B][10][A]++;
				}
		}
		//Case 5 A/x
		if((now[1]=='?' || now[1]=='/') && (now[2]=='?' || now[2]=='x')){
			for(int A=0;A<10;++A)if(now[0]=='?' || now[0]=='0'+A){
				if(i>=20)dp[i-20][A][10-A]++;
			}
		}
		//Case 6 A/B
		if(now[1]=='?' || now[1]=='/'){
			for(int A=0;A<10;++A)if(now[0]=='?' || now[0]=='0'+A)
				for(int B=0;B<10;++B)if(now[2]=='?' || now[2]=='0'+B){
					if(i>=10+B)dp[i-10-B][A][10-A]++;
				}
		}
		//Case 7 AB-
		if(now[2]=='-' || now[2]=='?'){
			for(int A=0;A<10;++A)if(now[0]=='?' || now[0]=='0'+A)
				for(int B=0;B<10-A;++B)if(now[1]=='?' || now[1]=='0'+B){
					if(i>=A+B)dp[i-A-B][A][B]++;
				}
		}
	}
	//Print(n);
	for(int j=n-1;j>=1;--j){
		Clear();
		string now="";now+=str[j*2-2];now+=str[j*2-1];
		for(int i=0;i<M;++i)if(score[j]==i || score[j]==-1){
			for(int F=0;F<N;++F)for(int S=0;S<N;++S)if(tmp[i][F][S]){
				//Case 1 x-
				if((now[0]=='?' || now[0]=='x') && (now[1]=='?' || now[1]=='-')){
					if(i>=10+F+S)dp[i-10-F-S][10][F]+=tmp[i][F][S];
				}
				//Case 2 A/
				if(now[1]=='?' || now[1]=='/'){
					for(int A=0;A<10;++A)if(now[0]=='?' || now[0]=='0'+A){
						if(i>=10+F)dp[i-10-F][A][10-A]+=tmp[i][F][S];
					}
				}
				//Case 3 AB
				for(int A=0;A<10;++A)if(now[0]=='?' || now[0]=='0'+A)
					for(int B=0;B<10-A;++B)if(now[1]=='?' || now[1]=='0'+B){
						if(i>=A+B)dp[i-A-B][A][B]+=tmp[i][F][S];
					}
			}
		}
		//Print(j);
	}
	ll ans=0;
	for(int F=0;F<N;++F)for(int S=0;S<N;++S)ans+=dp[0][F][S];
	printf("%lld\n",ans);
}
int main(){
	int t;scanf("%i",&t);
	while(t--)Solve();
	return 0;
}

Compilation message (stderr)

bow.cpp: In function 'void Solve()':
bow.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
bow.cpp:26:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%i",&score[i]);
                       ~~~~~^~~~~~~~~~~~~~~~
bow.cpp: In function 'int main()':
bow.cpp:104:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int t;scanf("%i",&t);
        ~~~~~^~~~~~~~~

• Subtask 1: 16 / 16
• Subtask 2: 17 / 17
• Subtask 3: 26 / 26
• Subtask 4: 23 / 23
• Subtask 5: 18 / 18