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121111林韋安(2009-03-05 16:30:16)

gcc

#include <stdio.h> int main(void) { char name[20]; while(scanf("%s" , name) != EOF) { printf("Hello %s\n" , name); } return 0; }

121111林韋安(2009-03-05 16:29:30)

gcc

#include <stdio.h> int main(void) { int a, b; while(scanf("%d %d" , &a, &b) != EOF) { printf("%d\n" , a + b); } return 0; }

121111林韋安(2009-03-05 16:30:37)

gcc

#include <stdio.h> int main(void) { int m; int d; while(scanf("%d %d" , &m, &d) != EOF) { if((m * 2 + d) % 3 == 0) { printf("普通\n"); } else if((m * 2 + d) % 3 == 1) { printf("吉\n"); } else { printf("大吉\n"); } } return 0; }

121111林韋安(2009-03-05 16:31:20)

gcc

#include <stdio.h> int main(void) { int y; while(scanf("%d" , &y) != EOF) { if(y % 4 == 0 && y % 100 != 0 ||y % 400 == 0) { printf("閏年\n"); } else { printf("平年\n"); } } return 0; }

121111林韋安(2009-03-05 16:32:10)

gcc

#include <stdio.h> int main(void) { int a, b, c, d; int n; scanf("%d", &n); while(scanf("%d %d %d %d" , &a, &b, &c, &d)!=EOF) { if(d-c==c-b&&c-b==b-a) { printf("%d %d %d %d %d\n", a, b, c, d, d + d -c); } else if(d/c==c/b&&c/b==b/a) { printf("%d %d %d %d %d\n", a, b, c, d, d * d / c); } } return 0; }

121111林韋安(2009-03-05 16:32:49)

gcc

#include <stdio.h> #include <math.h> int main(void) { int a, b, c; int d; double x, y; double sqrt_d; while(scanf("%d %d %d", &a, &b, &c) != EOF) { d = b * b - 4 * a *c; sqrt_d = sqrt(d); if(d < 0) { printf("No real root\n"); } else if(d == 0) { x = -b / 2 / a; printf("Two same roots x=%.0lf\n", x); } else { x = (-b + sqrt_d) / 2 / a; y = (-b - sqrt_d) / 2 / a; printf("Two different roots x1=%.0lf , x2=%.0lf\n", x, y); } } return 0; }

121111林韋安(2009-03-05 16:33:56)

gcc

#include <stdio.h> #include <math.h> int main(void) { int n; int i; int t = 1; while(scanf("%d", &n) != EOF) { for(i = 2; i <= sqrt(n); i++) { if(n % i == 0) { t = 0; break; } } if(t == 0) { printf("非質數\n"); } else if(t == 1) { printf("質數\n"); } t = 1; } return 0; }

121111林韋安(2009-03-05 16:34:53)

gcc

#include <stdio.h> int main(void) { long long int a; long long int b; while(scanf("%lld %lld" , &a, &b) != EOF) { if(a >= b) { printf("%lld\n" , a - b); } else { printf("%lld\n" , b - a); } } return 0; }

121111林韋安(2009-05-17 11:16:26)

#include <stdio.h> #include <string.h> int main(void) { int i; char s[100]; while (scanf("%s", s) != EOF ) { int n = strlen(s); for ( i = 0; i < n; i++) { putchar(s[i] - 7); } printf("\n"); } return 0; }