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RomaNumber.c
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RomaNumber.c
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#include<stdio.h>
#include<stdlib.h>
int cal(char in[]){
int sum=0;
for(int i=0;i<20;i++){
if(in[i]=='\0'){
return sum;
}
if(in[i]=='M'){
if(in[i-1]=='C')continue;
else sum+=1000;
}
else if(in[i]=='D'){
if(in[i-1]=='C')continue;
else sum+=500;
}
else if(in[i]=='C'){
if(in[i+1]=='D')sum+=400;
else if(in[i-1]=='X')continue;
else if(in[i+1]=='M')sum+=900;
else sum+=100;
}
else if(in[i]=='L'){
if(in[i-1]=='X')continue;
else sum+=50;
}
else if(in[i]=='X'){
if(in[i+1]=='C')sum+=90;
else if(in[i-1]=='I')continue;
else if(in[i+1]=='L')sum+=40;
else sum+=10;
}
else if(in[i]=='V'){
if(in[i-1]=='I')continue;
else sum+=5;
}
else if(in[i]=='I'){
if(in[i+1]=='X')sum+=9;
else if(in[i+1]=='V')sum+=4;
else sum+=1;
}
}
}
int main(void){
int T,sum;
scanf("%d",&T);
char in[20];
for(int i=0;i<T;i++){
scanf("%s",in);
sum=cal(in);
printf("%d\n",sum);
}
}