#include <iostream>
#include <vector>
#include <map>
using namespace std;
class Solution {
public:
vector<int> twoSum(vector<int> &nums, int target) {
vector<int> answer;
for (int i = 0; i <nums.size(); i++) {
for (int j = i + 1; j< nums.size(); j++) {
if (nums[i]+nums[j] == target) {
answer.push_back(i);
answer.push_back(j);
//returnanswer;
}
}
}
return answer;
}
voidtest1() {
Solution s;
vector<int> nums = {2, 7,11, 15};
int target = 17;
vector<int> temp =s.twoSum(nums, target);
cout << temp[0] <<temp[1];
}
vector<int> twoSum1(vector<int> &numbers, int target) {
int n = numbers.size();
vector<int> result;
map<int, int> index;
for (int i = 0; i < n; i++){
cout << "first: i= " << i << " ";
if(index.count(numbers[i]) != 0) {
cout <<index[numbers[i]]<< numbers[i];
// if exists
result.push_back(index[numbers[i]]);
result.push_back(i);
break;
}
cout << "second: i=" << i;
index[target -numbers[i]] = i;
}
return result;
}
voidtest2() {
Solution s;
vector<int> nums = {2, 7,11, 15};
int target = 13;
vector<int> temp =s.twoSum1(nums, target);
cout << temp[0] <<temp[1];
}
};
#include <iostream>
#include <cstdio>
#include <cstring>
int main() {
charstr[128];
gets(str);
int count= 0;
int len =strlen(str);
if (len< 5000) {
for (int i = (len - 1); i >=0; i--) {
if (str[i] != ' ') {
count++;
} else {
cout<<"shut down cause we meeet ' '" << endl;
break;
}
}
}
cout<< count << endl;
return 0;
}
#include <iostream>
#include <cstdio>
#include <cstring>
{
string s1;
string s2;
// chars1[128];
// chars2[128];
// gets(s1);
// gets(s2);
getline(cin,s1);
cin >>s2;
s2[0] =toupper(s2[0]);
int count = 0;
for (int j = 0;j<s1.length(); j++){
s1[j] =toupper(s1[j]);
}
for (int i = 0;i<s1.length(); i++){
if (s2[0] ==s1[i])
count++;
}
cout <<count;
return 0;
}
