做法:先用数组读入,之后遍历查询即可(其实我感觉用结构体做会舒服点)
代码:
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ LL zhunkao[2000]; int shiji[2000]; int kaoji[2000]; int cha[2000]; int n; cin >> n; for(int i = 0;i < n;i++){ scanf("%lld %d %d",&zhunkao[i],&shiji[i],&kaoji[i]); } int m; cin >> m; for(int i = 0;i < m;i++){ cin >> cha[i]; } for(int i = 0;i < m;i++){ for(int j = 0;j < n;j++){ if(cha[i] == shiji[j]){ cout << zhunkao[j] << " " << kaoji[j] << endl; } } } }
代码:
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ int n; cin >> n; if(n+2 == 7){ cout << 7 << endl; }else cout << (n+2) % 7 << endl; }
做法:感觉这个题当时快把我折腾二了,思路其实很简单,就是立两个flag,判断好奇偶,长度,正负,写一长串输出即可
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ string s; cin >> s; int flag_f = 0; int flag_ou = 0; int len; //cout << s[0] << endl; if(s[0] == ‘-‘){ flag_f = 1; } if(flag_f == 1){ len = s.length() - 1; }else{ len = s.length(); } if(flag_f == 1){ if(s[len] % 2 == 0){ flag_ou = 1; } }else{ if(s[len-1] % 2 == 0){ flag_ou = 1; } } //cout << len << endl; int cnt = 0; int len2 = s.length(); for(int i = 0;i < len2;i++){ if(s[i] == ‘2‘){ cnt++; } } //cout << cnt << endl; double ans; ans = (cnt*1.0)/(len*1.0); //cout << ans << endl; if(flag_f == 1){ ans = ans * 1.5; } if(flag_ou == 1){ ans = ans * 2; } ans = ans * 100; printf("%.2f",ans); cout << "%"; }
做法:嗯,就这?
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ map<char,string>mp; mp[‘-‘] = "fu"; mp[‘1‘] = "yi"; mp[‘2‘] = "er"; mp[‘3‘] = "san"; mp[‘4‘] = "si"; mp[‘5‘] = "wu"; mp[‘6‘] = "liu"; mp[‘7‘] = "qi"; mp[‘8‘] = "ba"; mp[‘9‘] = "jiu"; mp[‘0‘] = "ling"; string s; cin >> s ; int len = s.length(); for(int i = 0;i < len;i++){ if(i == 0){ cout << mp[s[i]]; }else{ cout << " " << mp[s[i]]; } } }
代码:
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ int N; cin >> N; int vis[200005]; for(int i = 0;i < 200005;i++){ vis[i] = 0; } int K; while(N--){ cin >> K; for(int i = 0;i < K;i++){ int id; cin >> id; if(K != 1){ vis[id] = 1; } } } int M; cin >> M; int ids; int cnt = 0; while(M--){ cin >> ids; if(vis[ids] == 0){ if(cnt != 0){ cout << " "; } printf("%05d",ids); vis[ids] = 1; cnt++; } } if(cnt == 0){ cout << "No one is handsome" << endl; } }
代码:
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ int a,b; cin >> a >> b; cout << a*b << endl; }
做法:写个函数用来计算阶乘,主函数算和
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream>- #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int fac(int a){ int s = 1; for(int i = 1;i <= a;i++){ s = s*i; } return s; } int main(){ int n; int ans = 0; cin >> n; for(int i = 1;i <= n;i++){ ans += fac(i); } cout << ans << endl; }
做法:结构体和set一起,先开一个结构体,分别存名字,数量,平均值还有个数,之后往set里输入,因为set会自动排序去重所以非常方便,之后排序的时候写个cmp结构体排序,之后根据N的数量决定一下输出即可
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long longdata #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; struct str{ char id[20]; int kk; int cnt; double adv; }data[20005]; bool cmp(str a,str b){ if(a.cnt == b.cnt){ return a.adv < b.adv; }else{ return a.cnt > b.cnt; } } int main(){ int N; cin >> N; int a[2000]; for(int i = 0;i < N;i++){ set<int>se; cin >> data[i].id >> data[i].kk; for(int j = 0;j < data[i].kk;j++){ int xx; cin >> xx; se.insert(xx); } data[i].cnt = se.size(); data[i].adv = (data[i].kk*1.0) / (data[i].cnt*1.0); } sort(data,data+N,cmp); if(N >= 3){ cout << data[0].id << " " << data[1].id << " " << data[2].id << endl; }else if(N == 2){ cout << data[0].id << " " << data[1].id << " " << "-" << endl; }else if(N == 1){ cout << data[0].id << " " << "-" << " " << "-" << endl; }else if(N == 0){ cout << "- - -" << endl; } }
代码:
//???????£???AC??????????? // ******** // ************ // ####....#. // #..###.....##.... // ###.......###### // ........... // ##*####### // ####*******###### // ...#***.****.*###.... // ....**********##..... // ....**** *****.... // #### #### // ###### ###### #include<iostream> #include<algorithm> #include<cstdio> #include<cmath> #include<string> #include<map> #include<sstream> #include<cstring> #include<vector> #include<iomanip> #include<queue> #include<set> #define LL long long #define _64 __int64 const double PI = atan(1.)*4.; const double EPS = 1e-6; const int INF = 0x3f3f3f3f; using namespace std; int main(){ int n; cin >> n; map<string,int>mp; set<string>se; for(int i = 0;i < n;i++){ string xx; cin >> xx; se.insert(xx); } int m; cin >> m; int sum = 0; int zan; string id; for(int i = 0;i < m;i++){ cin >> id >> zan; sum += zan; if(se.find(id) == se.end()){ mp[id] = zan; } } double adv; adv = sum*1.0/m*1.0; int cnt = 0; //set<string>::iterator is; map<string,int>::iterator it; for(it = mp.begin();it != mp.end();it++){ if(it->second > adv){ cout << it->first <<endl; cnt++; } } if(cnt == 0){ cout << "Bing Mei You" << endl; } }
原文:https://www.cnblogs.com/CCCCrack/p/13977682.html