Eroare de compilare: main.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated] 1 | #import<bits/stdc++.h> | ^~~~~~ main.cpp: In function 'int M(int, int)': main.cpp:4:284: warning: no return statement in function returning non-void [-Wreturn-type] 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ^ main.cpp: At global scope: main.cpp:4:285: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ^~~~ main.cpp: In function 'int main()': main.cpp:4:313: error: no match for 'operator>>' (operand types are 'std::ifstream' {aka 'std::basic_ifstream<char>'} and 'char*') 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ~^~~~~~~~~~ | | | | | char* | std::ifstream {aka std::basic_ifstream<char>} In file included from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: /usr/include/c++/12.2.1/istream:168:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match) 168 | operator>>(bool& __n) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:168:7: note: conversion of argument 1 would be ill-formed: main.cpp:4:321: warning: comparing the result of pointer addition '(((char*)(& a[(i ++)])) + 1)' and NULL [-Waddress] 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ~~~~~~^~ main.cpp:4:321: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'char*' /usr/include/c++/12.2.1/istream:172:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match) 172 | operator>>(short& __n); | ^~~~~~~~ /usr/include/c++/12.2.1/istream:172:7: note: conversion of argument 1 would be ill-formed: main.cpp:4:321: error: invalid conversion from 'char*' to 'short int' [-fpermissive] 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ~~~~~~^~ | | | char* main.cpp:4:321: error: cannot bind rvalue '(short int)(((char*)(& a[(i ++)])) + 1)' to 'short int&' /usr/include/c++/12.2.1/istream:175:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match) 175 | operator>>(unsigned short& __n) | ^~~~~~~~ /usr/include/c++/12.2.1/istream:175:7: note: conversion of argument 1 would be ill-formed: main.cpp:4:321: error: invalid conversion from 'char*' to 'short unsigned int' [-fpermissive] 4 | std::ifstream I("ferma3.in");std::ofstream O("ferma3.out");char a[N][N],r,e;int b[N][N],w[]={-1,0,1,0},t[]={0,1,0,-1},d[N*N],n,m,z,i=1,j,k,l,u,s,v,o,p,q,c[N*N];int M(int x,int y){b[x][y]=z;d[z]++;for(int i=0;i<4;i++)if(!b[x+w[i]][y+t[i]]&&a[x][y]==a[x+w[i]][y+t[i]])M(x+w[i],y+t[i]);}main(){for(I>>v>>n>>m;i<=n;I>>a[i++]+1);F if(!b[i][j])z++,M(i,j),o=std::max(o,d[z]);F{e=a[i][j];for(k=0;k<4;k++){a[i][j]=a[i+w[k]][j+t[k]];for(l=0,s=0;l<4;l++)if(!c[b[i+w[l]][j+t[l]]]&&a[i][j]==a[i+w[l]][j+t[l]])c[b[i+w[l]][j+t[l]]]=1,s+=d[b[i+w[l]][j+t[l]]];if(!c[b[i][j]])s++;if(s>u)u=s,r=a[i][j],p=i,q=j;for(l=0;l<4;l++)c[b[i+w[l]][j+t[l]]]=0;}a[i][j]=e;}v&1?O<<o:O<<p<<" "<<q<<"\n"<<r;} | ~~~~~~^~ | | | char* Non zero exit status: 1