js 习题 1

前言

『最孤独的人最亲切，受过伤的人总是笑的最灿烂。』—— 「素媛」

T1

let buf="";
process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let [a,b]=buf.split(" ").map(function(x){return parseInt(x);}) ;console.log(a+b);
});

T2

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let [a,b,c,d]=buf.split("\n").map(x=>parseInt(x)) ;console.log(`DIFERENCA = ${a*b-c*d}`);
});

T3

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let lines=buf.split("\n");let [x1,y1]=lines[0].split(" ").map(x=>{return parseFloat(x)});let [x2,y2]=lines[1].split(" ").map(x=>{return parseFloat(x)});let dx=x1-x2;let dy=y1-y2;console.log(Math.sqrt(dx*dx+dy*dy).toFixed(4));
});

T4

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let n=parseInt(buf);let money=[100,50,20,10,5,2,1];console.log(n);for(let p of money){let cnt=parseInt(n/p);console.log(`${cnt} nota(s) de R$ ${p},00`);n=n-cnt*p;}
});

T5

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let n=parseInt(buf);let hours=parseInt(n/3600);let minutes=parseInt(n%3600/60);let seconds=parseInt(n%60);console.log(`${hours}:${minutes}:${seconds}`);
});

T6

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let [a,b]=buf.split(" ").map(x=>{return parseInt(x)});if(a%b===0||b%a===0){console.log("Sao Multiplos");}else{console.log("Nao sao Multiplos");}
});

T7

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let [a,b]=buf.split(" ").map(x=>{return parseFloat(x)});if(a===1){console.log(`Total: R$ ${(b*4).toFixed(2)}`);}else if(a===2){console.log(`Total: R$ ${(b*4.5).toFixed(2)}`);}else if(a===3){console.log(`Total: R$ ${(b*5).toFixed(2)}`);}else if(a===4){console.log(`Total: R$ ${(b*2).toFixed(2)}`);}else{console.log(`Total: R$ ${(b*1.5).toFixed(2)}`);}
});

T8

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let n=parseFloat(buf);if(n>=0&&n<=25){console.log("Intervalo [0,25]");}else if(n>25&&n<=50){console.log("Intervalo (25,50]");}else if(n>50&&n<=75){console.log("Intervalo (50,75]");}else if(n>75&&n<=100){console.log("Intervalo (75,100]");}else{console.log("Fora de intervalo");}
});

T9

let buf="";process.stdin.on("readable",function(){let chunk=process.stdin.read();if(chunk){buf+=chunk.toString();}
});process.stdin.on("end",function(){let [a,b]=buf.split(" ").map(x=>{return parseInt(x)});let ans;if(b>a){ans=b-a;}else{ans=24-a+b;}console.log(`O JOGO DUROU ${ans} HORA(S)`);
});

结语

今天写到这儿，明天全神贯注提高效率，有可能的话，明天把 js 全学完

见证者，为见证而来。铭记者，因铭记而生。