Kaalu and love, (https://www.codechef.com/BEST2021/problems/WEEKFIND)

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Practice

Author: Anurag dubey
Tester: Anurag dubey
Editorialist: Anurag dubey

DIFFICULTY:

CAKEWALK, SIMPLE, EASY.BRUTEFORCE,INTERMEDIET

PREREQUISITES:

Math,

PROBLEM:

In given question we have just given a day and integer n we have to find out after n day what day will .

QUICK EXPLANATION:

First check the day. then as we know that there is 7 days in a week so we will mod the given number with 7 and what ever output will came we will increase the day according to it .

EXPLANATION:

First check the day. then as we know that there is 7 days in a week so we will mod the given number with 7 and what ever output will came we will increase the day according to it .
for example if given day is monday and given integer n is 8 then first we will first mod it with 7 and the output will came 1 then we know that 1 day after monday is tuesday so the output is tuesday .

SOLUTIONS:

Setter's Solution

1. #include<bits/stdc++.h>

2. using namespace std;

• int main(){

3. int t;

4. cin>>t;

5. while(t–){

• string day;

6. cin>>day;

7. int n;

8. cin>>n;

9. int k=n%7;

10. if(day==“monday”){

11. if(k==1){

12. cout<<“tuesday”;

13. }

14. else if(k==2){

15. cout<<“wednesday”;

16. }

17. else if(k==3){

18. cout<<“thursday”;

19. }

20. else if(k==4){

21. cout<<“friday”;

22. }

23. else if(k==5){

24. cout<<“saturday”;

25. }

26. else if(k==6){

27. cout<<“sunday”;

28. }

29. else {

30. cout<<“monday”;

31. }

32. }

• else if(day==“tuesday”){

33. if(k==1){

34. cout<<“wednesday”;

35. }

36. else if(k==2){

37. cout<<“thursday”;

38. }

39. else if(k==3){

40. cout<<“friday”;

41. }

42. else if(k==4){

43. cout<<“saturday”;

44. }

45. else if(k==5){

46. cout<<“sunday”;

47. }

48. else if(k==6){

49. cout<<“monday”;

50. }

51. else {

52. cout<<“tuesday”;

53. }

• }

• else if(day==“wednesday”){

54. if(k==1){

55. cout<<“thursday”;

56. }

57. else if(k==2){

58. cout<<“friday”;

59. }

60. else if(k==3){

61. cout<<“saturday”;

62. }

63. else if(k==4){

64. cout<<“sunday”;

65. }

66. else if(k==5){

67. cout<<“monday”;

68. }

69. else if(k==6){

70. cout<<“tuesday”;

71. }

72. else {

73. cout<<“wednesday”;

74. }

• }

• else if(day==“thursday”){

75. if(k==1){

76. cout<<“friday”;

77. }

78. else if(k==2){

79. cout<<“saturday”;

80. }

81. else if(k==3){

82. cout<<“sunday”;

83. }

84. else if(k==4){

85. cout<<“monday”;

86. }

87. else if(k==5){

88. cout<<“tuesday”;

89. }

90. else if(k==6){

91. cout<<“wednesday”;

92. }

93. else {

94. cout<<“thursday”;

95. }

• }

• else if(day==“friday”){

96. if(k==1){

97. cout<<“saturday”;

98. }

99. else if(k==2){

100. cout<<“sunday”;

101. }

102. else if(k==3){

103. cout<<“monday”;

104. }

105. else if(k==4){

106. cout<<“tuesday”;

107. }

108. else if(k==5){

109. cout<<“wednesday”;

110. }

111. else if(k==6){

112. cout<<“thursday”;

113. }

114. else {

115. cout<<“friday”;

116. }

• }

• else if(day==“saturday”){

117. if(k==1){

118. cout<<“sunday”;

119. }

120. else if(k==2){

121. cout<<“monday”;

122. }

123. else if(k==3){

124. cout<<“tuesday”;

125. }

126. else if(k==4){

127. cout<<“wednesday”;

128. }

129. else if(k==5){

130. cout<<“thursaday”;

131. }

132. else if(k==6){

133. cout<<“friday”;

134. }

135. else {

136. cout<<“saturday”;

137. }

• }

• else {if(k==1){

138. cout<<“monday”;

139. }

140. else if(k==2){

141. cout<<“tuesday”;

142. }

143. else if(k==3){

144. cout<<“wednesday”;

145. }

146. else if(k==4){

147. cout<<“thursday”;

148. }

149. else if(k==5){

150. cout<<“friday”;

151. }

152. else if(k==6){

153. cout<<“saturday”;

154. }

155. else {

156. cout<<“sunday”;

157. }

• }

158. cout<<endl;

159. }

• return 0;

160. }

Tester's Solution

1. #include<bits/stdc++.h>

2. using namespace std;

• int main(){

3. int t;

4. cin>>t;

5. while(t–){

• string day;

6. cin>>day;

7. int n;

8. cin>>n;

9. int k=n%7;

10. if(day==“monday”){

11. if(k==1){

12. cout<<“tuesday”;

13. }

14. else if(k==2){

15. cout<<“wednesday”;

16. }

17. else if(k==3){

18. cout<<“thursday”;

19. }

20. else if(k==4){

21. cout<<“friday”;

22. }

23. else if(k==5){

24. cout<<“saturday”;

25. }

26. else if(k==6){

27. cout<<“sunday”;

28. }

29. else {

30. cout<<“monday”;

31. }

32. }

• else if(day==“tuesday”){

33. if(k==1){

34. cout<<“wednesday”;

35. }

36. else if(k==2){

37. cout<<“thursday”;

38. }

39. else if(k==3){

40. cout<<“friday”;

41. }

42. else if(k==4){

43. cout<<“saturday”;

44. }

45. else if(k==5){

46. cout<<“sunday”;

47. }

48. else if(k==6){

49. cout<<“monday”;

50. }

51. else {

52. cout<<“tuesday”;

53. }

• }

• else if(day==“wednesday”){

54. if(k==1){

55. cout<<“thursday”;

56. }

57. else if(k==2){

58. cout<<“friday”;

59. }

60. else if(k==3){

61. cout<<“saturday”;

62. }

63. else if(k==4){

64. cout<<“sunday”;

65. }

66. else if(k==5){

67. cout<<“monday”;

68. }

69. else if(k==6){

70. cout<<“tuesday”;

71. }

72. else {

73. cout<<“wednesday”;

74. }

• }

• else if(day==“thursday”){

75. if(k==1){

76. cout<<“friday”;

77. }

78. else if(k==2){

79. cout<<“saturday”;

80. }

81. else if(k==3){

82. cout<<“sunday”;

83. }

84. else if(k==4){

85. cout<<“monday”;

86. }

87. else if(k==5){

88. cout<<“tuesday”;

89. }

90. else if(k==6){

91. cout<<“wednesday”;

92. }

93. else {

94. cout<<“thursday”;

95. }

• }

• else if(day==“friday”){

96. if(k==1){

97. cout<<“saturday”;

98. }

99. else if(k==2){

100. cout<<“sunday”;

101. }

102. else if(k==3){

103. cout<<“monday”;

104. }

105. else if(k==4){

106. cout<<“tuesday”;

107. }

108. else if(k==5){

109. cout<<“wednesday”;

110. }

111. else if(k==6){

112. cout<<“thursday”;

113. }

114. else {

115. cout<<“friday”;

116. }

• }

• else if(day==“saturday”){

117. if(k==1){

118. cout<<“sunday”;

119. }

120. else if(k==2){

121. cout<<“monday”;

122. }

123. else if(k==3){

124. cout<<“tuesday”;

125. }

126. else if(k==4){

127. cout<<“wednesday”;

128. }

129. else if(k==5){

130. cout<<“thursaday”;

131. }

132. else if(k==6){

133. cout<<“friday”;

134. }

135. else {

136. cout<<“saturday”;

137. }

• }

• else {if(k==1){

138. cout<<“monday”;

139. }

140. else if(k==2){

141. cout<<“tuesday”;

142. }

143. else if(k==3){

144. cout<<“wednesday”;

145. }

146. else if(k==4){

147. cout<<“thursday”;

148. }

149. else if(k==5){

150. cout<<“friday”;

151. }

152. else if(k==6){

153. cout<<“saturday”;

154. }

155. else {

156. cout<<“sunday”;

157. }

• }

158. cout<<endl;

159. }

• return 0;

160. }

Editorialist's Solution

1. #include<bits/stdc++.h>

2. using namespace std;

• int main(){

3. int t;

4. cin>>t;

5. while(t–){

• string day;

6. cin>>day;

7. int n;

8. cin>>n;

9. int k=n%7;

10. if(day==“monday”){

11. if(k==1){

12. cout<<“tuesday”;

13. }

14. else if(k==2){

15. cout<<“wednesday”;

16. }

17. else if(k==3){

18. cout<<“thursday”;

19. }

20. else if(k==4){

21. cout<<“friday”;

22. }

23. else if(k==5){

24. cout<<“saturday”;

25. }

26. else if(k==6){

27. cout<<“sunday”;

28. }

29. else {

30. cout<<“monday”;

31. }

32. }

• else if(day==“tuesday”){

33. if(k==1){

34. cout<<“wednesday”;

35. }

36. else if(k==2){

37. cout<<“thursday”;

38. }

39. else if(k==3){

40. cout<<“friday”;

41. }

42. else if(k==4){

43. cout<<“saturday”;

44. }

45. else if(k==5){

46. cout<<“sunday”;

47. }

48. else if(k==6){

49. cout<<“monday”;

50. }

51. else {

52. cout<<“tuesday”;

53. }

• }

• else if(day==“wednesday”){

54. if(k==1){

55. cout<<“thursday”;

56. }

57. else if(k==2){

58. cout<<“friday”;

59. }

60. else if(k==3){

61. cout<<“saturday”;

62. }

63. else if(k==4){

64. cout<<“sunday”;

65. }

66. else if(k==5){

67. cout<<“monday”;

68. }

69. else if(k==6){

70. cout<<“tuesday”;

71. }

72. else {

73. cout<<“wednesday”;

74. }

• }

• else if(day==“thursday”){

75. if(k==1){

76. cout<<“friday”;

77. }

78. else if(k==2){

79. cout<<“saturday”;

80. }

81. else if(k==3){

82. cout<<“sunday”;

83. }

84. else if(k==4){

85. cout<<“monday”;

86. }

87. else if(k==5){

88. cout<<“tuesday”;

89. }

90. else if(k==6){

91. cout<<“wednesday”;

92. }

93. else {

94. cout<<“thursday”;

95. }

• }

• else if(day==“friday”){

96. if(k==1){

97. cout<<“saturday”;

98. }

99. else if(k==2){

100. cout<<“sunday”;

101. }

102. else if(k==3){

103. cout<<“monday”;

104. }

105. else if(k==4){

106. cout<<“tuesday”;

107. }

108. else if(k==5){

109. cout<<“wednesday”;

110. }

111. else if(k==6){

112. cout<<“thursday”;

113. }

114. else {

115. cout<<“friday”;

116. }

• }

• else if(day==“saturday”){

117. if(k==1){

118. cout<<“sunday”;

119. }

120. else if(k==2){

121. cout<<“monday”;

122. }

123. else if(k==3){

124. cout<<“tuesday”;

125. }

126. else if(k==4){

127. cout<<“wednesday”;

128. }

129. else if(k==5){

130. cout<<“thursaday”;

131. }

132. else if(k==6){

133. cout<<“friday”;

134. }

135. else {

136. cout<<“saturday”;

137. }

• }

• else {if(k==1){

138. cout<<“monday”;

139. }

140. else if(k==2){

141. cout<<“tuesday”;

142. }

143. else if(k==3){

144. cout<<“wednesday”;

145. }

146. else if(k==4){

147. cout<<“thursday”;

148. }

149. else if(k==5){

150. cout<<“friday”;

151. }

152. else if(k==6){

153. cout<<“saturday”;

154. }

155. else {

156. cout<<“sunday”;

157. }

• }

158. cout<<endl;

159. }

• return 0;

160. }