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C语言超时,已哭晕,求问各路大神为什么#include<stdio.h> #include<stdlib.h> #include<string.h> int main() { int n,i,j,*fre,l,k,p; char ** dic,c,*dup; scanf("%d",&n); dic=(char**)malloc(sizeof(char*)*n); fre=(int*)malloc(sizeof(int)*n); dup=(char*)malloc(sizeof(char)*n); for(i=0;i<=n;i++) { dic[i]=(char*)malloc(sizeof(char)*16); fre[i]=1; dup[i]='A'; } getchar(); for(i=1;i<=n;i++) { j=0; while(j<=6) { scanf("%c",&c); if(c!='-' && c!='\n') { if(c>='A' && c<='Z') { switch(c) { case 'A':case 'B':case 'C': dic[i][j]='2';break; case 'D':case 'E':case 'F': dic[i][j]='3';break; case 'G':case 'H':case 'I': dic[i][j]='4';break; case 'J':case 'K':case 'L': dic[i][j]='5';break; case 'M':case 'N':case 'O': dic[i][j]='6';break; case 'P':case 'R':case 'S': dic[i][j]='7';break; case 'T':case 'U':case 'V': dic[i][j]='8';break; case 'W':case 'X':case 'Y': dic[i][j]='9';break; default: break; } } else dic[i][j]=c; j++; } } getchar(); } for(i=1;i<=n;i++) { if(dic[i]!=NULL) { for(j=1;j<=n;j++) { if(j!=i && dic[j]!=NULL && strcmp(dic[i],dic[j])==0) { fre[i]+=1; dic[j]=NULL; } } } } l=0; for(i=1;i<=n;i++) if(dic[i]!=NULL && fre[i]>1) { dup[i]=dic[i][0]; l++; } //if(l==0) printf("No duplicates."); c='A'; for(j=1;j<=l;j++) { for(i=1;i<=n;i++) if(dic[i]!=NULL && fre[i]>1 && dup[i]<c) { c=dup[i]; p=i; } for(k=0;k<=6;k++) { if(k==3) printf("-"); printf("%c",dic[p][k]); } //if(j==l) printf(" %d",fre[p]); printf(" %d\n",fre[p]); dic[p]=NULL; c='A'; } return 0; } Followed by:
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