1.2~1.5

3 files changed, 144 insertions, 0 deletions

diff --git a/1.2/beads.c b/1.2/beads.c
new file mode 100644
index 0000000..9f21528
--- /dev/null
+++ b/1.2/beads.c
@@ -0,0 +1,64 @@
+/*
+ID: mytbk921
+LANG: C
+TASK: beads
+*/
+
+#include <stdio.h>
+#define MAXL 360
+
+int next(int t,int n)
+{
+	return (t==n-1)?0:(t+1);
+}
+
+int last(int t,int n)
+{
+	return (t==0)?(n-1):(t-1);
+}
+
+int main()
+{
+	FILE *fin=fopen("beads.in","r");
+	FILE *fout=fopen("beads.out","w");
+
+	int n;
+	int i,l,r;
+	int count,countr,max=0;
+	char beads[MAXL],color;
+	fscanf(fin,"%d%s",&n,beads);
+
+	for (i=0;i<n;i++){ //break between i-1 and i
+		count=0;countr=0;
+		for (l=last(i,n);l!=i;l=last(l,n)){ //search left
+			if (count==0){ //the first bead
+				color=beads[l];
+				++count;
+			}
+			else if (beads[l]=='w'||color=='w'||beads[l]==color){ //have a white or is the same color
+				++count;
+				if (color=='w') color=beads[l];
+				continue;
+			}
+			else break;
+		}
+		l=next(l,n); //the final leftmost
+		for (r=i;r!=l;r=next(r,n)){ //search right
+			if (countr==0){
+				color=beads[r];
+				++countr;
+			}
+			else if (beads[r]=='w'||color=='w'||beads[r]==color){
+				++countr;
+				if (color=='w') color=beads[r];
+				continue;
+			}
+			else break;
+		}
+		if (countr+count>max)
+			max=countr+count;
+	}
+	fprintf(fout,"%d\n",max);
+	return 0;
+}
+
diff --git a/1.2/friday.c b/1.2/friday.c
new file mode 100644
index 0000000..c0b2ceb
--- /dev/null
+++ b/1.2/friday.c
@@ -0,0 +1,48 @@
+/*
+ID: mytbk921
+LANG: C
+TASK: friday
+*/
+
+#include <stdio.h>
+
+int isleap(int year)
+{
+	if (year%4==0 && (year%100!=0 || year%400==0))
+		return 1;
+	else
+		return 0;
+}
+
+const int DaysOfMonth[2][12]={{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
+
+int main()
+{
+	int n; //years eclipsed
+	int year;
+	int nDays[7]={0}; //number of Sat. to Fri.
+	int wDay=2+12; //the week day,1900.01.01 is Monday(2)
+	int i;
+	FILE *fin=fopen("friday.in","r");
+	FILE *fout=fopen("friday.out","w");
+	
+	fscanf(fin,"%d",&n);
+	for (year=1900;year<1900+n;year++){
+		int type=isleap(year); 
+		for (i=0;i<12;i++){
+			wDay%=7;
+			nDays[wDay]++;
+			wDay+=DaysOfMonth[type][i];
+		}
+	}
+	for (i=0;i<7;i++){
+		if (i)
+			fputc(' ',fout);
+		fprintf(fout,"%d",nDays[i]);
+	}
+	fputc('\n',fout);
+	fclose(fin);
+	fclose(fout);
+	return 0;
+}
+
diff --git a/1.2/ride.c b/1.2/ride.c
new file mode 100644
index 0000000..2a68239
--- /dev/null
+++ b/1.2/ride.c
@@ -0,0 +1,32 @@
+/*
+ID: mytbk921
+LANG: C
+TASK: ride
+*/
+
+#include <stdio.h>
+#define MODN 47
+
+int main()
+{
+	FILE *fin=fopen("ride.in","r");
+	FILE *fout=fopen("ride.out","w");
+	int p[2]={1,1}; //2 products
+	char str[2][8];
+
+	int i,j;
+	fscanf(fin,"%s%s",str[0],str[1]);
+	for (i=0;i<2;i++){
+		for (j=0;str[i][j];j++){
+			p[i]*=str[i][j]-'A'+1;
+			p[i]%=MODN;
+		}
+	}
+	if (p[0]==p[1])
+		fprintf(fout,"GO\n");
+	else
+		fprintf(fout,"STAY\n");
+	
+	return 0;
+}
+