1、b1036
#include <cstdio>
int main(){
int col, row;
char symbol;
scanf("%d %c", &col, &symbol);
if(col % 2 == 0){
row = col / 2;
}
if(col % 2 == 1){
row = col / 2 + 1;
}
for(int i = 0; i < col; i++){
printf("%c", symbol);
}
printf("\n");
for(int i = 0; i < row - 2; i++){
printf("%c", symbol);
for(int i = 0; i < col -2; i++){
printf(" ");
}
printf("%c", symbol);
printf("\n");
}
for(int i = 0; i < col; i++){
printf("%c", symbol);
}
return 0;
}
2、b1037
#include <cstdio>
const int Gallon = 17 * 29;
const int Sickle = 29;
int main(){
int a1, b1, c1;
int a2, b2, c2;
scanf("%d.%d.%d %d.%d.%d", &a1, &b1, &c1, &a2, &b2, &c2);
int price = a1 * Gallon + b1 * Sickle + c1;
int money = a2 * Gallon + b2 * Sickle + c2;
int change = money - price;
if(change < 0){
printf("-");
change = -change;
}
printf("%d.%d.%d\n", change / Gallon, change % Gallon / Sickle, change % Sickle);
return 0;
}
3、b1038
#include <cstdio>
int grade[101] = {0};
int main(){
int n;
scanf("%d", &n);
for(int i = 0; i < n; i++){
int score;
scanf("%d", &score);
grade[score]++;
}
int m;
scanf("%d", &m);
for(int i = 0; i < m; i++){
int score;
scanf("%d", &score);
if(i == m -1){
printf("%d", grade[score]);
}
else{
printf("%d ", grade[score]);
}
}
return 0;
}
4、b1039
#include <cstdio>
#include <cstring>
int hashTable[128] = {0};
char str1[1010];
char str2[1010];
int count = 0;
int main(){
gets(str1);
int len1 = strlen(str1);
for(int i = 0; i < len1; i++){
hashTable[str1[i]]++;
}
gets(str2);
int len2 = strlen(str2);
for(int i = 0; i < len2; i++){
hashTable[str2[i]]--;
if(hashTable[str2[i]] < 0){
count++;
}
}
if(!count){
printf("Yes %d", len1 -len2);
}
else{
printf("No %d", count);
}
return 0;
}
5、b1040
#include <cstdio>
#include <cstring>
const int MAXN = 100010;
const int MOD = 1000000007;
char str[MAXN];
int leftNumP[MAXN] = {0};
int main(){
gets(str);
int len = strlen(str);
for(int i = 0; i < len; i++){
if(i > 0){
leftNumP[i] = leftNumP[i - 1];
}
if(str[i] == 'P'){
leftNumP[i]++;
}
}
int ans = 0, rightNumT = 0;
for(int i = len - 1; i >= 0; i--){
if(str[i] == 'T'){
rightNumT++;
}
else if(str[i] == 'A'){
ans = (ans + leftNumP[i] * rightNumT) % MOD;
}
}
printf("%d", ans);
return 0;
}
