洛谷题单代码参考【入门2 分支结构】
- 数的性质
- 闰年判断
- Apples
- 洛谷团队系统
- 肥胖问题
- 三位数排序
- 月份天数
- 不高兴的津津
- 买铅笔
- ISBN号码 （普及题）
- 小玉家的电费
- 小鱼的航程（改进版）
- 三角函数
- 陶陶摘苹果
- 三角形分类（普及题）【注意先判断是否为三角形，再去判断是哪一类或两类或三类三角形】
- ABC
#include
using namespace std;
int main(){
int n, flag = 1;
cin >> n;
int isEven = !(n & 1);
int property2 = (n > 4 && n < 13);
cout << (isEven & property2) << " "
<< (isEven || property2) << " "
<< (isEven && !property2 || !isEven && property2)<< " "
<< ((!isEven) && (!property2)) << endl;
return 0;
}
#include
using namespace std;
int isLeapYear(int year);
int main(){
int year;
cin >> year;
cout << isLeapYear(year) << endl;
return 0;
}
int isLeapYear(int year){
if((!(year & 3) && (year % 100)) || (year % 400 == 0)){
return 1;
}
return 0;
}
#include
using namespace std;
int main(){
int x;
cin >> x;
if(x < 2){
cout << "Today, I ate " << x << " apple.";
} else {
cout << "Today, I ate " << x << " apples.";
}
return 0;
}
#include
using namespace std;
int main(){
int n;
cin >> n;
int local = 5 * n;
int luogu = 3 * n + 11;
cout << (local < luogu ? "Local" : "Luogu") << endl;
return 0;
}
#include
#include
using namespace std;
int main(){
double m, n;
cin >> m >> n;
double bmi = m / pow(n, 2);
if(bmi < 18.5){
cout << "Underweight" << endl;
} else if(bmi < 24){
cout << "Normal" << endl;
} else {
cout << bmi << endl << "Overweight" << endl;
}
return 0;
}
#include
#include
using namespace std;
int main(){
int num[4] = {0};
for(int i = 0; i < 3; i++){
cin >> num[i];
}
sort(num, num+3);
for(int i = 0; i < 3; i++){
cout << num[i] << " ";
}
return 0;
}
#include
using namespace std;
int isLeapYear(int year){
if((!(year & 3) && (year % 100)) || (year % 400 == 0)){
return 1;
}
return 0;
}
int main(){
int year, month;
int months[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
cin >> year >> month;
if(isLeapYear(year)){
months[2] += 1;
}
cout << months[month] << endl;
return 0;
}
#include
using namespace std;
int main(){
int school[8], spareTime[8];
int sum = 0, time = 0, isFlag = 1;
for(int i = 0; i < 7; i++){
cin >> school[i] >> spareTime[i];
}
sum = school[0] + spareTime[0];
if(sum < 9){
for(int i = 1; i < 8; i++){
time = school[i - 1] + spareTime[i - 1];
if((time > 8)&& (time > sum)){
sum = school[i - 1] + spareTime[i - 1];
cout << i << endl;
isFlag = 0;
break;
}
}
} else {
cout << 1 << endl;
isFlag = 0;
}
if(isFlag){
cout << 0 << endl;
}
return 0;
}
#include
#include
using namespace std;
typedef unsigned long long ull;
int main(){
int n;
cin >> n;
int one, oneMoney, two, twoMoney, three, threeMoney;
int oneTotal = 0, twoTotal = 0, threeTotal = 0;
cin >> one >> oneMoney
>> two >> twoMoney
>> three >> threeMoney;
int temp = one;
for(int i = 1; i <= n; i++){
if(temp >= n){
oneTotal = i * oneMoney;
break;
}
temp += one;
}
temp = two;
for(int i = 1; i <= n; i++){
if(temp >= n){
twoTotal = i * twoMoney;
break;
}
temp += two;
}
temp = three;
for(int i = 1; i <= n; i++){
if(temp >= n){
threeTotal = i * threeMoney;
break;
}
temp += three;
}
cout << min(oneTotal, min(twoTotal, threeTotal)) << endl;
return 0;
}
#include
#include
using namespace std;
int main(){
string str;
int sum = 0, index = 1, result = 0;
int isFlag = 0;
cin >> str;
for(int i = 0; i < str.length() - 2; i++){
if(i == 1 || i == 5){
continue;
}
sum += (str[i] - '0') * index++;
}
result = sum % 11;
isFlag = result == 10 ? 1 : 0;
if((result == (str[12] - '0')) || ((isFlag) && (str[12] == 'X'))){
cout << "Right" << endl;
} else {
str[12] = isFlag ? 'X' : result + '0';
cout << str << endl;
}
return 0;
}
#include
#include
using namespace std;
int main(){
double total;
cin >> total;
if(total <= 150){
cout << fixed << setprecision(1) << total * 0.4463 << endl;
} else if(total <= 400){
double free = 0.0;
free = (total - 150) * 0.4663 + 150 * 0.4463;
cout << fixed << setprecision(1) << free << endl;
} else {
double free = 0.0;
free = (total - 400) * 0.5663 + (400 - 150) * 0.4663 + 150 * 0.4463;
cout << fixed << setprecision(1) << free << endl;
}
return 0;
}
#include
using namespace std;
typedef unsigned long long ull;
int main(){
ull sum = 0;
int x, n, i = 0, temp = 0;
cin >> x >> n;
for(int i = 0; i < n; i++){
if(x == 6){
++x;
continue;
}
if(x == 7){
x = 1;
continue;
}
sum += 250;
++x;
}
cout << sum << endl;
return 0;
}
#include
#include
using namespace std;
typedef unsigned long long ull;
int gcd(int a, int b);
int main(){
ull a, b, c, nMax = 0, nMin = 0;
int divisor = 0, dividend = 0;
cin >> a >> b >> c;
nMax = max(a, max(b, c));
nMin = min(a, min(b, c));
dividend = nMin / gcd(nMax, nMin);
divisor = nMax / gcd(nMax, nMin);
cout << dividend << "/" << divisor << endl;
return 0;
}
int gcd(int a, int b){
return b == 0 ? a : gcd(b, a % b);
}
#include
using namespace std;
int applesHeight[20] = {0};
int main(){
int tao, count = 0;
for(int i = 0; i < 10; i++){
cin >> applesHeight[i];
}
cin >> tao;
tao += 30;
for(int i = 0; i < 10; i++){
if(tao >= applesHeight[i]){
++count;
}
}
cout << count << endl;
return 0;
}
#include
#include
using namespace std;
int main(){
int a, b, c, nMin = 0, nMax = 0, temp = 0, isFlag = 0;
unsigned long long shortSide = 0, longSide = 0;
cin >> a >> b >> c;
if(a > b){
temp = a;
a = b;
b = temp;
}
if(b > c){
temp = b;
b = c;
c = temp;
}
if(a > b){
temp = a;
a = b;
b = temp;
}
shortSide = a * a + b * b;
longSide = c * c;
if(a + b <= c){
cout << "Not triangle" << endl;
}
else if(shortSide == longSide){
cout << "Right triangle" << endl;
isFlag = 1;
} else if(shortSide > longSide){
cout << "Acute triangle" << endl;
isFlag = 1;
} else if(shortSide < longSide){
cout << "Obtuse triangle" << endl;
isFlag = 1;
}
if((a == b || b == c) && isFlag){
cout << "Isosceles triangle" << endl;
}
if((a == b) && (b == c) && isFlag){
cout << "Equilateral triangle" << endl;
}
return 0;
}
#include
#include
#include
using namespace std;
int main(){
int num[4] = {0};
char ch[4] = {0};
for(int i = 0; i < 3; i++){
cin >> num[i];
}
for(int i = 0; i < 3; i++){
cin >> ch[i];
}
sort(num, num + 3);
for(int i = 0; i < 3; i++){
cout << num[ch[i] - 'A'] << " " ;
}
return 0;
}
