洛谷题单代码【入门1 顺序结构】
- A+B Problem
- 超级玛丽游戏
- 苹果采购
- 字母转换
- 数字反转
- 再分肥宅水
- 小鱼的游泳时间
- 小学数学N合一
- 三角形面积
- 10.小玉买文具
- Apples Prologue
- 对角线
- 上学迟到
- 成绩
#include
using namespace std;
int main(){
int a, b;
cin >> a >> b;
cout << a + b << endl;
return 0;
}
#include
using namespace std;
int main(){
cout <<
" ********\n"
" ************\n"
" ####....#.\n"
" #..###.....##....\n"
" ###.......###### ### ###\n"
" ........... #...# #...#\n"
" ##*####### #.#.# #.#.#\n"
" ####*******###### #.#.# #.#.#\n"
" ...#***.****.*###.... #...# #...#\n"
" ....**********##..... ### ###\n"
" ....**** *****....\n"
" #### ####\n"
" ###### ######\n"
"##############################################################\n"
"#...#......#.##...#......#.##...#......#.##------------------#\n"
"###########################################------------------#\n"
"#..#....#....##..#....#....##..#....#....#####################\n"
"########################################## #----------#\n"
"#.....#......##.....#......##.....#......# #----------#\n"
"########################################## #----------#\n"
"#.#..#....#..##.#..#....#..##.#..#....#..# #----------#\n"
"########################################## ############"
<< endl;
return 0;
}
#include
using namespace std;
int main(){
int num, student;
cin >> num >> student;
cout << num * student << endl;
return 0;
}
#include
using namespace std;
int main(){
char ch;
cin >> ch;
cout << char(ch - 32) << endl;
return 0;
}
#include
using namespace std;
float reverseNum(float f);
int main(){
float f;
cin >> f;
cout << reverseNum(f) << endl;
}
float reverseNum(float f){
int temp = f * 10;
int t = temp % 10, num = 0;
while(temp > 0){
num = num * 10 + temp % 10;
temp /= 10;
}
return num * 0.001;
}
#include
#include
using namespace std;
int main(){
double t;
int n;
cin >> t >> n;
cout << fixed << setprecision(3) << t / n << endl;
cout << 2 * n << endl;
return 0;
}
#include
#include
using namespace std;
int getHour(int startHour, int endHour){
int hour = 0;
if(startHour > endHour){
hour = 24 - startHour + endHour;
} else{
hour = endHour - startHour;
}
return hour;
}
int main(){
int startHour, startMin, endHour, endMin;
int min = 0, hour = 0;
cin >> startHour >> startMin >> endHour >> endMin;
if(startMin > endMin){
endHour = endHour == 0 ? 23 : endHour - 1;
min = 60 - startMin + endMin;
hour = getHour(startHour, endHour);
} else {
min = endMin - startMin;
hour = getHour(startHour, endHour);
}
cout << hour << " " << min << endl;
return 0;
}
#include
#include
#include
#include
using namespace std;
int num = 1;
int question9(int n){
if(num == 4){
return n;
}
++num;
return question9((n + 1) * 2);
}
int main(){
int t;
cin >> t;
int result = 0, sum = 0, n = 0, num = 0, total = 0;
char ch = ' ';
double pi = 3.141593, v = 0.0;
float free = 0.0, temp = 0.0;
switch(t){
case 1:
cout << "I love Luogu!" << endl;
break;
case 2:
cout << 2 + 4 << " " << 10 - 2 - 4 << endl;
break;
case 3:
cout << 14 / 4 << endl;
cout << 14 - 14 % 4 << endl;
cout << 14 % 4 << endl;
break;
case 4:
cout << setprecision(6) << 500.0 / 3 << endl;
break;
case 5:
cout << (220 + 260) / (20 + 12) << endl;
break;
case 6:
cout << sqrt(6 * 6 + 9 * 9) << endl;
break;
case 7:
sum = 100;
cout << sum + 10 << endl;
cout << sum + 10 - 20 << endl;
cout << sum - sum << endl;
break;
case 8:
cout << 2 * 5 * pi << endl;
cout << pi * 5 * 5 << endl;
cout << 1.0 * 4 / 3 * pi * 5 * 5 * 5 << endl;
break;
case 9:
cout << question9(1) << endl;
break;
case 10:
cout << 9 << endl;
break;
case 11:
cout << 100.0 / 3.0 << endl;
break;
case 12:
n = 1;
ch = 'A';
while(++n < 19){
ch += 1;
if(ch == 'M'){
cout << n << endl;
}
}
cout << ch << endl;
break;
case 13:
v = pi * 4 * 4 * 4 * 4 / 3 + pi * 10 * 10 * 10 * 4 / 3;
cout << int(pow(v, 1.0/3)) << endl;
break;
case 14:
num = 10, total = 0;
free = 110, temp = free * num;
while(temp < 3500){
free -= 1;
num += 1;
temp = free * num;
}
cout << num << endl;
}
return 0;
}
#include
#include
#include
using namespace std;
int main(){
double a, b, c;
double p = 0.0;
cin >> a >> b >> c;
p = 0.5 * (a + b + c);
cout << fixed << setprecision(1)
<< sqrt(p * (p - a) * (p - b) * (p - c)) << endl;
return 0;
}
#include
using namespace std;
int main(){
int a, b;
cin >> a >> b;
cout << int((a + b * 0.1) / 1.9) << endl;
return 0;
}
#include
using namespace std;
int main(){
int m, t, s;
cin >> m >> t >> s;
int n = t != 0 ? (s % t == 0 ? s / t : s / t + 1) : m;
int apples = m >= n ? m - n : 0;
cout << apples << endl;
return 0;
}
#include
using namespace std;
typedef unsigned long long ull;
ull point[100005] = {0};
ull sum[100005] = {0};
int main(){
int n;
cin >> n;
point[4] = 1;
for(ull i = 1; i <= n; i++){
sum[i] = sum[i - 1] + i * i;
}
for(ull i = 5; i <= n; i++){
point[i] = point[i - 1] + (i - 2) * (i - 2) * (i - 3) / 2 - sum[i - 3];
}
cout << point[n] << endl;
return 0;
}
#include
#include
using namespace std;
int main(){
const int total = 8 * 60;
int before = 0, hours = 0, minutes = 0;
int s, v;
scanf("%d %d", &s, &v);
int time = ceil(1.0 * s / v) + 10;
if(time > total){
minutes = time - total;
hours = 0;
while(minutes >= 60){
++hours;
minutes -= 60;
}
hours = hours == 0 ? hours : 23 - hours;
minutes = 60 - minutes;
} else {
hours = 7;
minutes = time;
while(minutes >= 60){
--hours;
minutes -= 60;
}
minutes = 60 - minutes;
}
printf("%s%d:%s%d\n", hours < 10 ? "0" : "", hours, minutes < 10 ? "0" : "" , minutes);
return 0;
}
#include
using namespace std;
int main(){
int a, b, c;
cin >> a >> b >> c;
cout << a * 0.2 + b * 0.3 + c * 0.5 << endl;
return 0;
}
